All Models
Anthropic
Claude Fable 5
Anthropic's flagship Mythos-level model for the hardest problems, built for deep reasoning, long-context work, and high-autonomy agents.
reasoningadvancedlong-contextmythos
Provider
Anthropic
Input price
$10.00 / 1M tokens
Output price
$50.00 / 1M tokens
Strengths
reasoning, advanced, long-context, mythos
Modalities
text, image
Context window
999k tokens
Max output
128k tokens
Actions/tools
Supported
Build with Claude Fable 5
Launch a project in a few clicks
1. Open the builder with Claude Fable 5 preselected.
2. Pick a template or paste your prompt.
3. Ship to web, API, or embed.
Related Models
Claude 4.5 Opus
Anthropic's most capable model with exceptional reasoning and long context understanding.
Claude 4.6 Opus
A trusted older Opus model with strong reasoning and coding performance. Often preferred for its more intuitive, collaborative feel, especially when you want the model to infer intent with less upfront specification.
Claude 4.7 Opus
Anthropic's most capable generally available Opus model for complex reasoning, long-context work, and agentic coding.