Claude Fable 5

anthropic/claude-5-fable-20260609

Claude Fable 5 is an Anthropic model released on 2026‑06‑09. It accepts text, image, and file inputs, produces text output, supports tools and reasoning, and has a context length of 1 000 000 tokens. Pricing is $10 per million input tokens and $50 per million output tokens, and the model’s weights are not open.

  • tool use
  • structured outputs
  • reasoning

At a glance

provideranthropic
releasedJun 9, 2026
context1M
input / M$10

Specifications

What the API gives you

Context window
1M tokens
Max output
128K tokens
Input price
$10 / 1M tokens
Output price
$50 / 1M tokens
Cache read
$1 / 1M tokens
Modalities
text, image, file → text
Knowledge cutoff
—
Released
Jun 9, 2026

Recommendation coverage

Where this model appears

  1. #1Best LLM for Document Parsing
  2. #1Best LLM for Creative Writing
  3. #1Best LLM for Math & Reasoning
  4. #1Best LLM for Image Understanding
  5. #1Best LLM for Roleplay & Character
  6. #1Best LLM for OCR & Documents
  7. #1Best LLM for Massive Context
  8. #1Best LLM for Tool & Function Calling
  9. #1Best LLM for AI Agents
  10. #1Best LLM for Vision & Documents
  11. #1Best LLM for Agentic Coding
  12. #1Best LLM for Charts & Diagrams
  13. #1Best LLM for Autonomous Agents
  14. #1Best LLM for Computer & Browser Use
  15. #2Best LLM for Document Summarization
  16. #2Best LLM for Competition Math
  17. #2Best LLM for Literary Translation
  18. #2Best LLM for Chat & Roleplay
  19. #2Best LLM for Marketing Copy
  20. #2Best LLM for Business Writing
  21. #2Best LLM for Writing
  22. #2Best LLM for Coding
  23. #3Best LLM for Everyday Translation
  24. #3Best LLM for Translation
  25. #3Best LLM for a General Assistant
  26. #3Best LLM for RAG & Long Context
  27. #3Best LLM for Grounded RAG
  28. #4Best LLM for Logic & Problem Solving
  29. #4Best LLM for Frontend & UI
  30. #5Best LLM for JSON & Schema Output

Measured evidence

Public benchmark record

LMArena Agent
13.92026-07-13
LMArena Agent
13.22026-07-20
LMArena Text
1493 Elo2026-07-16
LMArena Text
1504 Elo2026-07-20
LMArena Vision
1335 Elo2026-07-12
LMArena WebDev
1631 Elo2026-07-16
LMArena WebDev
1636 Elo2026-07-20

LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open.

Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.