anthropic

Claude Opus 5 (Fast)

Name: Claude Opus 5 (Fast)
Creator: anthropic
Published: 2026-07-24T17:02:26.000Z

Fast-mode variant of 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

View source on OpenRouter

Overview

Model specifications

Context: 1,000,000 tokens
Maximum output: 128,000 tokens
Architecture: text+image+file->text
Tokenizer: Claude
Knowledge cutoff: Not provided
Moderated: Yes

Capabilities

Input → Output

Input

textimagefile

Output

text

Reasoning

Yes · max · xhigh · high · medium · low

API

Supported API parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsverbosity

Available providers

1 Provider

Anthropic

unknown

Context: 1M
Maximum output: 128K
Input: $10.00
Output: $50.00
Cache read: $1.00
Cache write: $12.50

anthropic

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Claude Opus 5

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...

Context: 1M
Input: text · image · file
Output: text

Input: $5.00Output: $25.00per 1M tokens

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anthropic

Released Jul 25, 2026

Claude Opus 5 (batch)

Context: 1M
Input: text · image · file
Output: text

Input: $2.50Output: $12.50per 1M tokens

View model details →