Anthropic: Claude Fable 5
Analysis Summary
Claude Fable 5 is Anthropic's current frontier model and the top-ranked model across intelligence (59.9), coding (76.5), and agentic (80.7) indices in the full database. It pairs that with a 1 million token context window, vision, file input, tool use, and function calling, making it the most capable all-round model available. Benchmark performance on GPQA (0.926), HLE (0.533), and terminal bench (0.629) confirms its lead across reasoning, scientific knowledge, and autonomous task execution.
For businesses, Fable 5 is the right choice for the most demanding workloads: autonomous software engineering agents, complex multi-document analysis, high-stakes client-facing content, and any pipeline where answer quality is the primary constraint. The 1M context window means it can hold entire codebases, lengthy contracts, or large research corpora in a single session. Vision and file input support consolidate multiple modalities on one model.
At $10 input and $50 output, it is among the most expensive models available. The cost is justified for high-value, low-volume tasks where accuracy and depth are critical. Teams should pair it with a cheaper model for routine or high-volume calls to manage costs effectively.
Assessed July 9, 2026
Editorial notes
Claude Fable 5 leads the entire field on intelligence, coding, and agentic benchmarks, with a 1M token context, vision, file input, and best-in-class instruction following from Anthropic.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How Anthropic: Claude Fable 5 compares
Anthropic: Claude Fable 5 ranks #1 of 387 AI models we track for overall intelligence, #1 of 152 for coding, #2 of 294 for agentic tasks. Its 1M-token context window is larger than 91% of the models we list. At $10.00 per million input tokens it is cheaper than 4% of comparable models.
About Anthropic: Claude Fable 5
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..
Capabilities
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Anthropic: Claude Fable 5 stack up?
Compare side-by-side with other frontier models.
Model Information
| OpenRouter ID |
anthropic/claude-fable-5
|
| Provider | anthropic |
| Release Date | June 9, 2026 |
| Context Length | 1,000,000 tokens |
| Max Completion | 128,000 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $10.00 | $0.010000 |
| Output | $50.00 | $0.050000 |
Live Performance
Live endpoint metrics, refreshed every 30 minutes.
Leaderboard Categories
External Resources
Frequently asked questions about Anthropic: Claude Fable 5
How much does Anthropic: Claude Fable 5 cost?
Anthropic: Claude Fable 5 costs $10.00 per million input tokens and $50.00 per million output tokens.
What is the context window of Anthropic: Claude Fable 5?
Anthropic: Claude Fable 5 has a context window of 1,000,000 tokens (1M).
Is Anthropic: Claude Fable 5 good for coding?
On our coding benchmark index, Anthropic: Claude Fable 5 ranks #1 of 152 models, placing it in the top quartile of the field for code generation and debugging.
What can Anthropic: Claude Fable 5 do?
Anthropic: Claude Fable 5 supports image/vision input, tool use, and function calling.
Who created Anthropic: Claude Fable 5?
Anthropic: Claude Fable 5 is developed by Anthropic and was released on June 9, 2026.
