Claude Fable 5
ClaudeFlagship
ThinkingTool UseVisionStructured Output
About this model
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...
Performance Tier
Flagship
Claude Fable 5 is a flagship model from Claude : the most capable in their lineup.
Best-in-class model from this provider. Highest performance across benchmarks, ideal for demanding tasks.
Pricing
This model is included in Elosia plansPremium
Highest cost level. A long conversation can quickly consume your monthly cap.
| Type | per 1M tokens |
|---|---|
| Input (prompt) | $10.00 |
| Output (completion) | $50.00 |
| Cache read | $1.00 |
| Cache write | $12.50 |
Capabilities
Context Length1.0M
Max Output Tokens128K
TokenizerClaude
Inputtext, image, file
Outputtext
Release DateJune 9, 2026
Benchmarks
General Intelligence
MMLU
Not reported
GPQA Diamond
92.6%
Mathematics
MATH-500
Not reported
Programming
HumanEval
Not reported
SWE-bench Verified
95%
Reasoning
IFEval
Not reported
Agentic
SWE-bench Pro
80.3%
Where does Claude Fable 5 stand?
Compare its performance index against every other model.
Recommended Use Cases
CodingAnalysisResearch
Strengths
- Top-tier real-world software engineering (SWE-bench Verified 95.0%, SWE-bench Pro 80.3%)
- State-of-the-art graduate-level scientific reasoning (GPQA Diamond 92.6%)
- Long-horizon agentic work with a 1M-token context window
- Multimodal input (text and image)
Limitations
- Premium pricing (around $10 / $50 per 1M input / output tokens)
- Anthropic did not publish a general-knowledge (MMLU) headline score
Frequently asked questions
Resources
This model may use your data for training