Catalog Systems Foundation models (substrate reference) Anthropic Claude (foundation models)

Anthropic Claude (foundation models)

https://www.anthropic.com/claude

Claude family of frontier foundation models — Sonnet 4 (workhorse), Opus 4.5 (frontier capability), Haiku 4.5 (fast/cheap). Frontier model used as substrate by Claude Code, Anthropic Memory tool, Cline, Aider, Continue.dev, Cursor, Goose, and dozens of other catalog entries. Memory in Claude is parametric (in weights) — discrete episodic memory lives outside the model in the Claude Memory tool (see Platform-provider memory section).

Active · Verified 2026-10-31 · fresh as of 2026-10-31 · 58 cited facts, 10 with a third-party source · 2 recorded changes · Suggest a correction

At a glance

Type
Frontier foundation model family (Sonnet 4 / Opus 4.5 / Haiku 4.5) vendor fix
Tier
T1
Section
Foundation models (substrate reference)
Created
2023-03 (Claude 1); 2024-06 (Claude 3 Opus/Sonnet/Haiku); 2024-10 (Claude 3.5 Sonnet); 2025-02 (3.7 Sonnet); 2025-05 (Claude 4 Sonnet/Opus); 2025-09 (Sonnet 4.5); 2025-11 (Opus 4.5 + Haiku 4.5) vendor fix
Latest release
Claude Opus 5.5 (2026-09-22); Claude Fable 5.1 (2026-09-01); Sonnet 5.5 + Haiku 5.5 current vendor fix
License
not applicable — not OSS fix
GitHub
not applicable — no GitHub repo fix
Pricing
API per 1M in/out: Fable 5.1 $10/$50; Opus 5.5 $4/$20; Sonnet 5.5 $2/$10; Haiku 5.5 from $0.10/$0.50 vendor fix
Funding
$65B Series H at $965B post-money (2026-05-28); S-1 filed for a proposed IPO (2026-10-26) vendor fix
Freshness
2026-10-31 fix
Layer
large-models repo fix
Licensing
commercial vendor fix
Deployment locus
cloud vendor fix
Platform vs product
both vendor fix
SDK languages
csharp, go, java, php, python, rest, ruby, typescript vendor fix
Protocols
mcp-client, openai-compatible vendor fix
Compliance
csa-star, hipaa, iso27001, iso42001, soc2-type2 vendor fix

When to use

Optimised for: reasoning, code, agentic tool-use, long-form writing, safety/alignment

Anti-fit: not for image generation; not for audio synthesis (text-output only); high cost at Opus tier; 200k context smaller than Gemini 3 (10M)

Pros & cons

Pros

Frontier coding capability (Opus 4.5); strong safety profile via Constitutional AI; native computer-use + tool-use; broad SDK coverage; AWS Bedrock + GCP Vertex distribution.

Cons

200k context smaller than Gemini 3's 10M; Opus pricing at premium tier; no open-weights option; no image / audio output; rate-limited at API tier without enterprise contract.

Claims & capabilities

Opus 4.5 leads coding (SWE-bench Verified ~80%); Sonnet 4.5 best price/perf; 200k context (1M for Sonnet via beta); native tool-use, computer-use, extended thinking; trained on Constitutional AI

Technical surface

API surface
REST + SDK (Python, TS, Java, Go, Ruby); also via AWS Bedrock + GCP Vertex AI APIs
Backend storage
not applicable — substrate foundation model
Deployment
Managed-only — Claude API/Platform plus Amazon Web Services, Google Cloud and Microsoft Azure
Embedding model
not applicable — not a memory product
Multi-tenancy
not applicable — substrate foundation model
MCP
not applicable — substrate foundation model
A2A
not applicable — substrate foundation model
OpenTelemetry
not applicable — substrate foundation model

Compare Anthropic Claude (foundation models) with…

Similar systems

Other foundation models (substrate reference) in the catalog, ranked by inbound references.

  • OpenAI GPT family (GPT-5 / GPT-4o / o3 / o4) T1

    OpenAI's foundation model family — GPT-5 (2025-08 flagship), GPT-4o (multimodal workhorse), o3/o4 reasoning series. Substrate for ChatGPT, the OpenAI API, Microsoft Copilot, Azure OpenAI, and many downstream agents in this catalog (Devin, Codex CLI, Operator, Cursor mode). Parametric memory in weights; discrete user memory ships in ChatGPT Memory feature (separate row).

  • Google Gemini 3 family T1

    Google DeepMind's Gemini 3 frontier model family — Gemini 3 Pro (top tier), 3 Flash (fast), 3 Nano (on-device). Substrate for Google Workspace AI, Vertex AI Agent Platform, Gemini Code Assist, Project Mariner, and Project Astra. Multimodal-native; 1M-10M context window. Largest context window of any frontier model. Used by Gemini Enterprise Agent Platform Memory Bank (separate row).

  • Mistral Large 2 / Mixtral family T1

    French frontier-model lab (Paris). Family includes Mistral Large 2 (123B dense, Jul-2024), Mixtral 8x22B (open-weights MoE), Mistral Small 3 (24B, open-weights Jan-2025), Codestral (code specialist). EU-headquartered alternative to US/China model labs; GDPR-friendly data residency. Distinct from the Mistral Le Chat memory feature (already in catalog) — this row covers the model family itself as substrate.

  • xAI Grok 4 T1

    Elon Musk's xAI frontier model — Grok 4 launched 2025-07. Trained on Colossus (100k+ GPU supercluster in Memphis). Deeply integrated with X/Twitter (real-time tweet data access). Grok 4 Heavy variant for premium tier. No frontier-tier open-weights — Grok 1 (314B MoE) is the only weight release. The x.ai site now brands itself SpaceXSI (page title, checked 2026-10-29).

  • Cohere Command R+ / Command A T1

    Toronto-based foundation-model lab (Aidan Gomez, ex-Google Brain 'Attention Is All You Need' co-author). Command family is enterprise / RAG-optimised: Command A (Mar-2025, 111B dense, 256k ctx), Command R+ (104B MoE), Command R7B (smallest tier). Announced merger with Aleph Alpha April-2026. Open weights via CC-BY-NC (non-commercial); Cohere-hosted for commercial.

  • DeepSeek R1 / V3 family T1

    DeepSeek (Hangzhou-based, Liang Wenfeng founder) — released DeepSeek-V3 671B MoE (37B active) Dec-2024, then R1 reasoning model Jan-2025 that matched o1 at ~3% of inference cost. Caused 'DeepSeek moment' in markets Jan-27-2025 — NVIDIA dropped 17%. MIT license. Substrate for cost-conscious OSS deployers and an active reasoning-research baseline.

Sources (57 cited facts, 10 third-party)

Each fact links to the page it came from; the badge says who published it (how to read sources).

What changed

Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)

  1. 2026-10-28
    • Funding / ownership “$23B+ total raised; $183B+ valuation (Series F-G 2025-26); Amazon $8B + Google $2B strategic investments” → “$65B Series H at $965B post-money (2026-05-28); S-1 filed for a proposed IPO (2026-10-26)” source
    #294
  2. 2026-10-26
    • Latest release “Opus 4.5 + Haiku 4.5 (2025-11)” → “Claude Opus 5.5 (2026-09-22); Claude Fable 5.1 (2026-09-01); Sonnet 5.5 + Haiku 5.5 current” source
    • Pricing “Pay-per-token API (Opus 4.5 $5/$25 per 1M; Sonnet 4.5 $3/$15; Haiku 4.5 $0.80/$4); Claude.ai Free + Pro ($20/mo) + Team + Enterprise” → “API per 1M in/out: Fable 5.1 $10/$50; Opus 5.5 $4/$20; Sonnet 5.5 $2/$10; Haiku 5.5 from $0.10/$0.50” source
    • Deployment “Managed-only (Anthropic API + AWS Bedrock + GCP Vertex)” → “Managed-only — Claude API/Platform plus Amazon Web Services, Google Cloud and Microsoft Azure” source
    #258

Related systems

Referenced by (115)

  • Adept ACT depends on at runtime — adjacent-infrastructure cell: Amazon AGI (parent post-acquisition); spiritual predecessor to Anthropic Computer Use + OpenAI Operator + Project Mariner
  • Agent Router (formerly Envoy AI Gateway) integrates with — Agent Router supported-providers page lists Anthropic (native and on GCP Vertex AI / AWS Bedrock). (verified 2026-10-29)
  • agentgateway integrates with — agentgateway standalone docs have an Anthropic Messages API route type page. (verified 2026-10-29)
  • AgentOps integrates with — AgentOps docs have a Anthropic Claude (foundation models) integration page. (verified 2026-10-29)
  • Anthropic Claude Memory depends on at runtime — adjacent-infrastructure cell: self-contained Claude consumer product
  • Anthropic Computer Use depends on at runtime — adjacent-infrastructure cell: Anthropic API; Docker / E2B for safe sandboxing
  • Anthropic Managed Agents — Memory depends on at runtime — adjacent-infrastructure cell: requires Claude API + managed filesystem
  • Arize Phoenix integrates with — Arize Phoenix docs have a Anthropic Claude (foundation models) integration page. (verified 2026-10-29)
  • AutoGen / AG2 integrates with — AG2 model configuration docs list Anthropic as a supported model provider with a config example. (verified 2026-10-29)
  • Backboard depends on at runtime — adjacent-infrastructure cell: BYO LLM (OpenAI/Anthropic/Gemini/Ollama keys)
  • Bifrost (Maxim AI) integrates with — Bifrost supported-providers docs have a provider page for Anthropic. (verified 2026-10-29)
  • Bolt.new (StackBlitz) — harness depends on at runtime — adjacent-infrastructure cell: StackBlitz WebContainer; Anthropic Claude
  • Braintrust integrates with — Braintrust docs have a Anthropic Claude (foundation models) integration page. (verified 2026-10-29)
  • Browser Use depends on at runtime — adjacent-infrastructure cell: Playwright; Anthropic / OpenAI / Gemini APIs; Browserbase / Hyperbrowser substrates
  • claude-brain depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Claude Code (Anthropic) depends on at runtime — adjacent-infrastructure cell: Anthropic API; MCP server ecosystem
  • Claude Code auto-memory depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Claude-CursorMemoryMCP depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Claude for Chrome depends on at runtime — adjacent-infrastructure cell: Chrome; Anthropic Computer Use API; Claude Memory
  • CLAUDE.md depends on at runtime — backend-storage cell: file (CLAUDE.md)
  • claude-mem depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • claude-supermemory depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Cloudflare AI Gateway integrates with — Cloudflare AI Gateway docs have a Anthropic provider page. (verified 2026-10-29)
  • Cloudflare MCP server portals integrates with — Cloudflare MCP server portals docs: the portal page gives per-client connection instructions for Claude Desktop. (verified 2026-10-29)
  • CoCounsel Legal (Thomson Reuters) depends on at runtime — Next-gen release (Aug 2026, built on Claude Agent SDK) is fully agentic and adds per-matter Workspaces that keep firm documents and precedents as context across matters and teams, plus Brief Builder…
  • codebase-memory-mcp (DeusData) depends on at runtime — adjacent-infrastructure cell: self-contained binary + SQLite WAL; MCP client (Claude Code/Codex CLI/etc.); no LLM lock-in
  • Cognee MCP depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Cognition Devin v2 / Spec Mode depends on at runtime — adjacent-infrastructure cell: absorbed Windsurf IP (Aug 2025); Anthropic + OpenAI models
  • Comet ML integrates with — Comet's Opik docs have a Anthropic Claude (foundation models) integration page. (verified 2026-10-29)
  • Composio integrates with — Composio's SDKs and frameworks page lists a Anthropic Claude (foundation models) provider. (verified 2026-10-29)
  • CrewAI integrates with — CrewAI LLM docs include an Anthropic provider configuration section. (verified 2026-10-29)
  • Cursor (IDE) depends on at runtime — adjacent-infrastructure cell: Anthropic Claude + OpenAI GPT + own Cursor-Tab model
  • Dapr Agents integrates with — Dapr Agents integrations: "Use Anthropic Claude models with Dapr Agents" provider page. (verified 2026-10-29)
  • Datadog Agent Observability (LLM Observability) integrates with — Datadog LLM Observability auto-instrumentation page lists a Anthropic LLM integration. (verified 2026-10-29)
  • Daytona integrates with — Daytona docs have a guide for running Anthropic Claude (foundation models) with Daytona sandboxes. (verified 2026-10-29)
  • Descope Agentic Identity Hub integrates with — Descope docs have a guide to issuing XAA ID-JAG tokens for Claude. (verified 2026-10-29)
  • Docker MCP Catalog, Toolkit & Gateway integrates with — Docker MCP Toolkit get-started page has connect-client instructions for Claude Desktop. (verified 2026-10-29)
  • DSPy integrates with — DSPy language model docs have an Anthropic setup tab for dspy.LM. (verified 2026-10-29)
  • e2b depends on at runtime — adjacent-infrastructure cell: Firecracker (substrate); Anthropic Claude Code; Perplexity; Hugging Face Spaces; competes with Modal Sandboxes / Daytona
  • Elasticsearch integrates with — Elastic Search Labs has a Anthropic Claude (foundation models) integration page. (verified 2026-10-29)
  • engram depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • GitHub Copilot (Agent Mode) depends on at runtime — adjacent-infrastructure cell: Azure OpenAI + Anthropic Claude + Google Gemini (multi-model 2024+)
  • GitHub Copilot Workspace depends on at runtime — adjacent-infrastructure cell: Azure OpenAI + Anthropic Claude (GitHub-hosted models)
  • Golem integrates with — Golem "Adding LLM and AI Capabilities (TypeScript)" guide shows the official @anthropic-ai/sdk package working in Golem agents. (verified 2026-10-29)
  • Google Agent Development Kit (ADK) integrates with — ADK docs have an Anthropic (Claude) model page for ADK agents. (verified 2026-10-29)
  • Graphiti MCP Server (Zep) depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Haystack (framework) integrates with — Haystack integrations directory has an Anthropic integration page ("Use Anthropic Models with Haystack"). (verified 2026-10-29)
  • Helicone integrates with — Helicone docs have a Anthropic Claude (foundation models) integration page. (verified 2026-10-29)
  • Highlight AI depends on at runtime — adjacent-infrastructure cell: Anthropic / OpenAI APIs; local Llama option
  • Hindsight MCP depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • HoneyHive integrates with — HoneyHive integrations docs have a Anthropic tracing/integration page. (verified 2026-10-29)
  • Hume EVI depends on at runtime — adjacent-infrastructure cell: Twilio (telephony); Anthropic / OpenAI LLMs (or Hume's eLLM)
  • IBM ContextForge MCP Gateway integrates with — IBM ContextForge docs have a Claude Desktop client page. (verified 2026-10-29)
  • Inngest integrates with — Inngest AgentKit docs: AgentKit Anthropic model adapter (reference). (verified 2026-10-29)
  • Inspect AI integrates with — Inspect AI model-providers page documents a Anthropic provider. (verified 2026-10-29)
  • Invariant Guardrails integrates with — Invariant Gateway README has a Anthropic (Messages API) integration section. (verified 2026-10-29)
  • JetBrains AI Assistant depends on at runtime — adjacent-infrastructure cell: JetBrains Cloud (OpenAI + Anthropic + Google)
  • Keycard integrates with — Keycard docs have a "Configure Anthropic" credential-brokering page. (verified 2026-10-29)
  • Kiro depends on at runtime — adjacent-infrastructure cell: AWS Bedrock (model routing); Anthropic Claude + Amazon Nova
  • Kong AI Gateway integrates with — Kong AI Gateway docs have a Anthropic AI-provider reference page. (verified 2026-10-29)
  • Laminar integrates with — Laminar integrations docs have a Anthropic observability page. (verified 2026-10-29)
  • LangChain (framework) integrates with — LangChain docs have an Anthropic integration provider page (Claude models for advanced reasoning and conversation). (verified 2026-10-29)
  • Langflow integrates with — Langflow components bundle: Anthropic (Claude) model component. (verified 2026-10-29)
  • Langfuse integrates with — Langfuse's integrations directory has a Anthropic Claude (foundation models) integration page. (verified 2026-10-29)
  • LangSmith integrates with — LangSmith docs have a tracing integration page for Anthropic Claude (foundation models). (verified 2026-10-29)
  • Letta / MemGPT integrates with · depends on at runtime — adjacent-infrastructure cell: BYO LLM (OpenAI/Anthropic/local); bundled storage (Postgres/SQLite)
  • LiteLLM integrates with — LiteLLM docs have an Anthropic provider page. (verified 2026-10-29)
  • LiveKit Agents integrates with · depends on at runtime — adjacent-infrastructure cell: OpenAI Realtime; Anthropic; Deepgram / Cartesia / Eleven STT-TTS; Twilio (for PSTN)
  • LlamaIndex (framework) integrates with — LlamaIndex has an official LLM integration package llama-index-llms-anthropic in its repo. (verified 2026-10-29)
  • local-memory-mcp depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Lovable.dev — harness depends on at runtime — adjacent-infrastructure cell: Supabase (default DB); Anthropic Claude + OpenAI
  • Lutra AI depends on at runtime — adjacent-infrastructure cell: OAuth providers; Anthropic / OpenAI; Google Workspace
  • Magnitude depends on at runtime — adjacent-infrastructure cell: Playwright; Anthropic / OpenAI APIs
  • Manus AI depends on at runtime — adjacent-infrastructure cell: Anthropic Claude (reported) + OpenAI
  • mcp-knowledge-graph depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • mcp-memory (Puliczek) depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • mcp-memory-service (doobidoo) depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Mem0 integrates with — Mem0 docs have an Anthropic LLM provider page for Mem0 open source. (verified 2026-10-29)
  • Mem0 MCP (official) depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • MetaGPT depends on at runtime — adjacent-infrastructure cell: OpenAI + Anthropic + Azure OpenAI
  • Microsoft Semantic Kernel integrates with — Semantic Kernel chat completion docs list an Anthropic AI service connector. (verified 2026-10-29)
  • MultiOn (now AGI, Inc.) depends on at runtime — adjacent-infrastructure cell: Playwright; Chromium-headless infrastructure; computer-use models (Claude / GPT-5 / Gemini)
  • n8n (AI agent flows) integrates with — n8n built-in AI cluster node: Anthropic Chat Model node. (verified 2026-10-29)
  • Official MCP Memory server depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • OpenHands depends on at runtime — adjacent-infrastructure cell: Docker; Anthropic + OpenAI APIs
  • OpenInference integrates with — The OpenInference repo README lists an OpenInference instrumentation package for Anthropic Claude (foundation models). (verified 2026-10-29)
  • OpenLLMetry (Traceloop) integrates with — OpenLLMetry's What's Supported page lists Anthropic Claude (foundation models) as instrumented out of the box. (verified 2026-10-29)
  • OpenMemory MCP depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • OpenRouter integrates with — OpenRouter lists Anthropic as an inference provider (providers API slug "anthropic"). (verified 2026-10-29)
  • Phidata (now Agno) integrates with · depends on at runtime — adjacent-infrastructure cell: HuggingFace Transformers; OpenAI / Anthropic / Gemini SDKs; YC W22 alumni network
  • Pipecat (Daily) integrates with · depends on at runtime — adjacent-infrastructure cell: Daily WebRTC; OpenAI Realtime; Anthropic; Deepgram + Cartesia STT/TTS
  • Pipedream Connect integrates with — Pipedream Connect docs have a "Pipedream MCP with Anthropic" page. (verified 2026-10-29)
  • Portkey AI integrates with — Portkey docs have an Anthropic LLM provider integration page. (verified 2026-10-29)
  • Pydantic-AI integrates with — Pydantic AI docs have an Anthropic model provider page. (verified 2026-10-29)
  • Pydantic-AI MemoryTool depends on at runtime — adjacent-infrastructure cell: requires Pydantic-AI + Anthropic
  • Pydantic Logfire integrates with — Pydantic Logfire integrations docs have a Anthropic page. (verified 2026-10-29)
  • PyRIT integrates with — PyRIT framework overview says targets connect to OpenAI, Azure, Anthropic, HuggingFace and HTTP endpoints. (verified 2026-10-29)
  • Replit Agent v3 depends on at runtime — adjacent-infrastructure cell: Replit Nix-based runtimes; Anthropic Claude (primary)
  • Retell AI depends on at runtime — adjacent-infrastructure cell: Twilio SIP; in-house STT/TTS; Anthropic / OpenAI LLMs
  • Skyvern depends on at runtime — adjacent-infrastructure cell: Playwright; Postgres; Anthropic/OpenAI/Gemini APIs
  • Sourcegraph Cody (agent) depends on at runtime — adjacent-infrastructure cell: Sourcegraph search graph; OpenAI + Anthropic + Google APIs
  • Strands Agents (AWS) integrates with — Strands Agents docs have an Anthropic model provider page. (verified 2026-10-29)
  • Superpowers episodic-memory plugin depends on at runtime — adjacent-infrastructure cell: requires Claude Code or MCP client; BYO storage
  • Synthflow depends on at runtime — adjacent-infrastructure cell: Twilio; Deepgram; ElevenLabs; OpenAI / Anthropic
  • Trigger.dev integrates with — Trigger.dev docs: Prompt caching guide for chat agents using Anthropic prompt caching. (verified 2026-10-29)
  • TrueFoundry AI Gateway integrates with — TrueFoundry AI Gateway docs have a Anthropic model-provider page. (verified 2026-10-29)
  • v0 (Vercel) depends on at runtime — adjacent-infrastructure cell: Vercel deploy; Anthropic + OpenAI + Vercel-trained models
  • Vapi integrates with · depends on at runtime — adjacent-infrastructure cell: Twilio / Vonage SIP; Deepgram + Cartesia + Eleven STT/TTS; Anthropic / OpenAI LLMs
  • Vercel AI SDK integrates with — AI SDK docs have an Anthropic official AI SDK provider page. (verified 2026-10-29)
  • Vonage AI Studio depends on at runtime — adjacent-infrastructure cell: Vonage CPaaS; Ericsson telco infra; OpenAI / Anthropic / Google Cloud
  • Weaviate integrates with — Weaviate's integrations / model-provider docs list Anthropic Claude (foundation models) as an integration. (verified 2026-10-29)
  • Weights & Biases integrates with — W&B Weave docs have a Anthropic Claude (foundation models) integration page. (verified 2026-10-29)
  • Windsurf (now Devin Desktop) depends on at runtime — adjacent-infrastructure cell: Anthropic Claude + OpenAI + Codeium-own models
  • Zed (Agentic Editing) depends on at runtime — adjacent-infrastructure cell: Anthropic Claude + OpenAI + local models (Ollama)
  • Zep & Graphiti integrates with — Graphiti README lists Anthropic as a supported LLM provider (graphiti-core[anthropic]). (verified 2026-10-29)