JetBrains AI Assistant
JetBrains' in-IDE assistant integrated across IntelliJ, PyCharm, GoLand, WebStorm, Rider, etc. Multi-model: OpenAI, Anthropic, Google, local. Differentiated by its deep IDE-API integration — refactorings, run configs, debugger context.
At a glance
- Type
- IDE AI assistant — chat, completions, AI actions (JetBrains)
- Tier
- T1
- Section
- Agent IDEs & coding harnesses
- Created
- 2023-12
- Latest release
- not applicable — not OSS
- License
- not applicable — not OSS
- GitHub
- not applicable — no GitHub repo
- Pricing
- $8.33/mo Personal / $16.50/mo Business AI add-on
- Funding
- JetBrains (private; revenue ~$400M+ per Forbes)
Taxonomy
- storage
- kv
- retrieval
- injection
- persistence
- session
- update
- agent-controlled
- unit
- turn
- governance
- opaque
- conflict
- no
When to use
Optimised for: in-IDE chat + completions + native refactoring integration
Anti-fit: JetBrains-only; less agentic than Cursor/Claude Code (Junie covers that)
Pros & cons
Pros
Tightest IDE-API integration in the category — agent can drive native refactorings, run configs, debugger; only major in-IDE assistant with first-class JetBrains pedigree.
Cons
JetBrains-only; agentic-mode is delegated to Junie (separate product); less aggressive multi-file edits than Cursor.
Claims & capabilities
Available on all JetBrains IDEs; multi-model; companion to Junie (autonomous agent) launched 2024.
Technical surface
- API surface
- JetBrains IDE plugin
- Backend storage
- local IDE + JetBrains AI cloud
- Deployment
- IDE plugin (cloud LLM by default; offline/self-host options)
- Embedding model
- not applicable — not a memory product
- Multi-tenancy
- per-user; Business per-org
- MCP
- searched not found
- A2A
- searched not found
- OpenTelemetry
- searched not found
Similar systems
Other agent ides & coding harnesses in the catalog, ranked by inbound references.
- Bedrock AgentCore (AWS) T2
AWS Bedrock AgentCore — managed runtime to deploy + scale + observe agents. Multi-component: Runtime, Identity, Memory, Gateway, Browser, Code Interpreter, Observability. Distinct from Bedrock Agents (older fixed-config product); AgentCore is the 2025 framework-agnostic runtime for any agent (LangGraph, CrewAI, Strands, OpenAI Agents SDK).
- Claude Code (Anthropic) T1
Anthropic's official agentic coding CLI — runs Claude as a long-running coding agent in the developer's terminal. Memory layer = CLAUDE.md (project + user scoped), agent skills, MCP servers. Released GA October 2024; widely adopted as the reference harness for Claude-as-coder. Plan Mode and Compute Use surfaces extend it from coding to broader desktop automation.
- GitHub Copilot (Agent Mode) T1
The original AI coding assistant (Copilot in editor; 2021). 2025 evolved into a full agentic surface: chat, completions, Agent Mode (multi-step), and Copilot Workspace. Backed by Microsoft. Distinct row from Workspace — this row covers the everyday in-editor + agent mode product, Workspace covers the hosted spec-driven workflow.
- Aider (harness) T2
OSS terminal coding agent by Paul Gauthier — one of the original AI-pair-programmer CLIs (2023). Architect/Editor modes; repo-map for context; uses any LiteLLM-compatible model. Memory via CONVENTIONS.md and .aider.conf.yml — author-edited markdown. Distinct from the separate Aider memory-row in "Coding-agent memory"; this row characterises the harness itself.
- Amazon Q Developer T1
Amazon's developer-focused agent — formerly CodeWhisperer (renamed 2024-Q4). Available as IDE plugins (VS Code, JetBrains, Visual Studio, Eclipse), in AWS Console, and CLI. Strong AWS-tooling integration: Q can read CloudWatch, troubleshoot IAM, suggest AWS-SDK code. Companion to Kiro for spec-driven flows.
- Anthropic Computer Use T1
Anthropic's API-surface capability that lets Claude control a virtual desktop — see screenshots, type, click. Launched 2024-10 as a public beta. Not a finished IDE itself; it's the substrate that other harnesses (and Anthropic's own Claude apps) use to operate a computer.
Related systems
References (2)
- Anthropic Claude (foundation models) depends on at runtime — adjacent-infrastructure cell: JetBrains Cloud (OpenAI + Anthropic + Google)
- OpenAI GPT family (GPT-5 / GPT-4o / o3 / o4) depends on at runtime — adjacent-infrastructure cell: JetBrains Cloud (OpenAI + Anthropic + Google)