Anthropic
Claude Fable 5
Anthropic's June 9, 2026 Fable model remains active as a prior-generation option after Fable 5.1 launched September 1. It accepts text and images, provides a 1M-token context window and up to 128K output, and uses always-on thinking. Standard Claude API prices are $10/$50 per MTok (input/output), with $1 cached input. Fable 5 includes safety classifiers that can refuse requests; its restricted Mythos 5 counterpart has the same capabilities without those classifiers.
- Provider
- Anthropic
- Context
- 1MCatalog · As of Aug 11, 2026Stale · 31d old
- yno subscription tier
- Max
- Released
- Jun 9, 2026
- Speed
- Medium
- Reasoning
- Expert
- Modality
- Multimodal
Benchmarks
Quality
- AA Intelligence Index
- AA Coding Index
- GPQA Diamond
- 92.6%Artificial Analysis · Date unknownAge unknown
Speed and latency
- Output speed
- 69.3tokens/sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
- Time to first token
- 57.77sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
- Time to first answer token
- 57.77sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
API pricing
- API input cost
- API output cost
Benchmark variant: Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback)
AA data retrieved Sep 11, 2026 · Artificial Analysis
Indexes use points; evaluations use accuracy percentages. API measurements do not measure yno application performance. Methodology
Capabilities
- Reasoning
- Code
- Agentic
- Vision
- Long Horizon
- Research
Use cases
- Long-horizon agents
- Complex software engineering
- Deep research
- Multi-step automation
Strengths
- Prior-generation Fable
- 1M context / 128K output
- Text and image input
- Always-on thinking
Best for
Teams maintaining Fable 5 workflows or evaluating migration to Fable 5.1
No credit card required
Related models
Frequently asked
- What is Claude Fable 5?
- Anthropic's June 9, 2026 Fable model remains active as a prior-generation option after Fable 5.1 launched September 1. It accepts text and images, provides a 1M-token context window and up to 128K output, and uses always-on thinking. Standard Claude API prices are $10/$50 per MTok (input/output), with $1 cached input. Fable 5 includes safety classifiers that can refuse requests; its restricted Mythos 5 counterpart has the same capabilities without those classifiers.
- How much does Claude Fable 5 cost in yno.ai?
- Claude Fable 5 is available on the Max tier of yno.ai.
- What can Claude Fable 5 do?
- Claude Fable 5 is best for Teams maintaining Fable 5 workflows or evaluating migration to Fable 5.1. Its main capabilities include Reasoning, Code, Agentic, Vision, Long Horizon, Research.
- How does Claude Fable 5 compare to other models?
- Claude Fable 5 excels at Prior-generation Fable and is recommended for Long-horizon agents, Complex software engineering, Deep research, Multi-step automation. See related models below.
- How do I use Claude Fable 5 in yno.ai?
- Sign up for yno.ai, select Claude Fable 5 from the model picker, and start chatting.