Claude Opus 5 (Fast)

Text input Image input File input Text output
Author's Description

Fast-mode variant of [Opus 5](/anthropic/claude-opus-5) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 5. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode

Key Specifications
Context
1M
Released
Jul 24, 2026
Supported Parameters

This model supports the following parameters:

Structured Outputs Tool Choice Tools Response Format Stop Include Reasoning Reasoning Max Tokens
Features

This model supports the following features:

Structured Outputs Tools Response Format Reasoning
Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $10
Completion $50
Input Cache Read $1
Input Cache Write $12.5
Web Search $10000

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
Anthropic
Anthropic | anthropic/claude-opus-5-fast-20260723 1M $10 / 1M tokens $50 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
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