Anthropic Auto Dream vs claude-mem
Anthropic Auto Dream vs claude-mem: side-by-side comparison of two claude code memory mechanisms systems — architecture, taxonomy, license, pricing, MCP/A2A support, and direct edges.
Anthropic Auto Dream · claude-mem
Cost & capability
| Anthropic Auto Dream | claude-mem | |
|---|---|---|
| Capability band | competent | competent |
| Capability composite | 70 | 55 |
| Cost tier | mid | free |
| $/Mtok input | — | 0 |
| $/Mtok output | — | 0 |
| Use cases | Code Generation Focused, Long Running Session | Code Generation Focused, Long Running Session |
Where they differ (12)
Rows where both sides have data and the values disagree — the shortlist of dimensions that actually distinguish these two systems.
| Anthropic Auto Dream | claude-mem | |
|---|---|---|
| Capability composite | 70 | 55 |
| Cost tier | mid | free |
| Type | REM-style sub-agent memory consolidation | Episodic / session-log compression |
| Created | 2026-05 (research-preview rollout in Claude Code; server-side feature flag) | 2025-09 |
| Pricing | bundled with Claude Code (no separate fee) | free / open source (AGPL-3.0); no paid tier |
| Backend storage | local filesystem (~/.claude/projects/<project>/memory/) | searched not found |
| Deployment | Local CLI (Claude Code) — Claude.ai web not in scope | local — SQLite + FTS5 per project; optional Chroma vector; no cloud |
| API surface | /dream slash command + /memory toggle (Auto-dream: on) | searched not found |
| MCP | native (first-party — Claude Code built on MCP) | native (first-party) |
| OpenTelemetry | no — local CLI feature | no |
| Optimised for | background memory consolidation + bounded MEMORY.md size + surgical updates | Claude-Code-native + MCP-portable memory |
| Anti-fit | not for users on Claude.ai web (CLI-only); not for environments where consolidation logic must be auditable | not for non-Claude-Code clients (some are MCP-portable) |
At a glance
| Anthropic Auto Dream | claude-mem | |
|---|---|---|
| Section | Claude Code memory mechanisms | Claude Code memory mechanisms |
| Tier | T1 | T1 |
| Type | REM-style sub-agent memory consolidation | Episodic / session-log compression |
| Created | 2026-05 (research-preview rollout in Claude Code; server-side feature flag) | 2025-09 |
| Latest release | — | v12.7.0 2026-05-06 |
| License | — | AGPL-3.0 |
| GitHub | — | 72.7k★ +9.1k/mo TypeScript |
| Pricing | bundled with Claude Code (no separate fee) | free / open source (AGPL-3.0); no paid tier |
| Funding | Anthropic total $12.4B+ raised; $40B valuation | — |
| Backend storage | local filesystem (~/.claude/projects/<project>/memory/) | searched not found |
| Deployment | Local CLI (Claude Code) — Claude.ai web not in scope | local — SQLite + FTS5 per project; optional Chroma vector; no cloud |
| API surface | /dream slash command + /memory toggle (Auto-dream: on) | searched not found |
| Embedding | — | searched not found |
| Multi-tenancy | — | searched not found |
| MCP | native (first-party — Claude Code built on MCP) | native (first-party) |
| A2A | not supported | not supported |
| OpenTelemetry | no — local CLI feature | no |
| Optimised for | background memory consolidation + bounded MEMORY.md size + surgical updates | Claude-Code-native + MCP-portable memory |
| Anti-fit | not for users on Claude.ai web (CLI-only); not for environments where consolidation logic must be auditable | not for non-Claude-Code clients (some are MCP-portable) |
Taxonomy
| Axis | Anthropic Auto Dream | claude-mem |
|---|---|---|
| storage | file | file |
| retrieval | extraction-pull | injection |
| persistence | long-term | cross-session |
| update | consolidation | consolidation |
| unit | fact | summary |
| governance | user-controllable | inspectable |
| conflict | llm-arbitrate | append |
Pros & cons
Anthropic Auto Dream
Pros: Bounded MEMORY.md size (200 lines) prevents context bloat; surgical updates preserve user-edited content; user-toggleable; complements rather than replaces CLAUDE.md.
Cons: Closed-source; opt-out mechanism not formally documented; consolidation logic opaque; no audit log for what was pruned/merged; only Claude Code (not Claude.ai web).
claude-mem
Pros: OSS plugin that adds auto-memory + indexing without sending data to Anthropic's cloud — strongest privacy posture for Claude Code memory.
Cons: Plugin install + maintenance burden; less polished than first-party auto-memory.