Claude Fable 5

Anthropic's most capable widely released model (GA June 9, 2026; API claude-fable-5). Access was suspended June 12-30, 2026 under a US export-control directive and restored globally on July 1, 2026. Always-on adaptive thinking, top-tier reasoning, agentic coding and long-context work; 90% prompt-caching input discount. Available on the Claude API, claude.ai, Claude Code, Cowork, Bedrock, Vertex AI and Microsoft Foundry.

Claude Fable 5 strengths

• State-of-the-art reasoning and benchmarks
• Elite long-horizon agentic coding
• 1M context with adaptive thinking always on
• Scientific research and knowledge work
• Computer use and vision

Pricing & context

Cost guide: a typical call of about 10K input + 2K output tokens costs roughly $0.20 at list prices. Worth modelling against cheaper tiers before committing high-volume traffic.

When to choose Claude Fable 5

Claude Fable 5 is best for the hardest multi-step agentic and coding work, frontier reasoning, and long-running autonomous tasks where capability matters most. If your workload is more cost-sensitive, weigh it against gpt-oss-120b (≈$0.03 input /1M) first.

Claude Fable 5 FAQ

How much does Claude Fable 5 cost?

Claude Fable 5 is priced at $10.00 per 1M input tokens and $50.00 per 1M output tokens (public API list price), with a 1M tokens (128K max output) context window. A typical call of about 10K input and 2K output tokens costs roughly $0.20.

What is Claude Fable 5 best for?

Claude Fable 5 by Anthropic is best for the hardest multi-step agentic and coding work, frontier reasoning, and long-running autonomous tasks where capability matters most.

How does Claude Fable 5 pricing compare to GPT-5.5?

Claude Fable 5 input costs $10.00 per 1M tokens versus $5.00 for GPT-5.5, roughly 2.0x more expensive on input. Output is $50.00 vs $30.00.

Is Claude Fable 5 multimodal?

Claude Fable 5 supports text, image.

Compare Claude Fable 5 head-to-head

Tools that use Claude Fable 5