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
GPT-6 AstraOpenAIGPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.Claude Fable 5.1AnthropicClaude Fable 5.1 improves on Fable 5 across long-running agentic coding, knowledge work, and research, following instructions precisely over sessions that run unattended for hours.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.
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