Anthropic
Available in Shortly AI
Claude Fable 5
Released July 1, 2026
ReasoningVision (Image)Tool Use
Claude Fable 5 is a Mythos-class model with robust safeguards. It can handle long-running, complex, and asynchronous tasks where previous models would have needed more frequent check-ins.
- Context window
- 1M tokens
- Maximum output
- 128K tokens
- Input pricing
- $10.00/M
- Output pricing
- $50.00/M
Independent benchmark
LiveBench performance
83.0overall
Benchmark data from LiveBench, release 2026-06-25. Scores are pinned and are not fetched on page load.
89.7
86.0
62.2
96.0
80.5
90.7
75.8
| Category | Score |
|---|---|
| Reasoning | 89.654 |
| Coding | 85.992 |
| Agentic Coding | 62.172 |
| Mathematics | 95.986 |
| Data Analysis | 80.538 |
| Language | 90.684 |
| Instruction Following | 75.771 |
Benchmarks measure selected evaluation tasks and do not guarantee performance for every prompt or workflow.
FAQ
Similar AI models
Claude Opus 5AnthropicClaude Opus 5 is the latest model in Anthropic's Opus family and a step-change improvement over Opus 4.8. It delivers major gains over Opus 4.8 in agentic coding, professional knowledge work, and long-horizon reasoning, and it is stronger per token across effort levels.Claude Opus 4.8AnthropicOpus 4.8 is a focused upgrade to Opus 4.7 and is Anthropic's best generally available model for coding, agentic tasks, and enterprise workflows. It builds on the strengths of previous Opus models with stronger performance on complex, multi-step coding tasks. Anthropic recommends using it on long-horizon coding and agentic tasks. It is also stronger on professional work, including document drafting, data analysis, and presentations.GPT 5.5OpenAIGPT‑5.5 understands what you’re trying to do faster and can carry more of the work itself. It excels at writing and debugging code, researching online, analyzing data, creating documents and spreadsheets, operating software, and moving across tools until a task is finished. Instead of carefully managing every step, you can give GPT‑5.5 a messy, multi-part task and trust it to plan, use tools, check its work, navigate through ambiguity, and keep going.
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