Claude Opus 4.6 (Fast)
Anthropic
Fast-mode variant of [Opus 4.6](/anthropic/claude-opus-4.6) - identical capabilities with higher output speed at premium 6x pricing.
What is Claude Opus 4.6 (Fast)?
Fast-mode variant of [Opus 4.6](/anthropic/claude-opus-4.6) - identical capabilities with higher output speed at premium 6x pricing.
Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode
Specifications
- Developer: Anthropic
- Context window: 1M tokens
- Max output: 128K tokens
- Input modalities: text, image, file
- Output modalities: text
- Input price: $30.00 per 1M tokens
- Output price: $150.00 per 1M tokens
- Knowledge cutoff: —
- Supported parameters: include_reasoning, max_tokens, reasoning, response_format, stop, structured_outputs, temperature, tool_choice, tools, top_p, verbosity
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