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Anthropic: Claude Opus 4.7 (fast) (Reasoning)

anthropic/claude-opus-4.7:fast-reasoning

Anthropic: Claude Opus 4.7 (fast) (Reasoning) is a 1,000,000-token model served on Composite at $6.25 per million tokens in and $31.3 per million tokens out.

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Specifications

Specifications and pricing as served by Composite
Model IDanthropic/claude-opus-4.7:fast-reasoning
ProviderClaude Platform on AWS
Context window1,000,000 tokens
Acceptstext, image, file
Returnstext
Input price$6.25 per million tokens
Output price$31.3 per million tokens
Prompt cachingSupported — cached input is billed at the provider's cache rate, on credits and plans alike
Web search$0.0125 per result
ThinkingOptional - see "Anthropic: Claude Opus 4.7 (fast) (Reasoning) (Reasoning)" in the catalog to turn it on by default
ModeratedYes - by the provider
Cost on a monthly planAbout 65 plan credits per typical call (8k in, 1k out)
Routing endpoints1

Measured on Composite

This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.

Pricing

$6.25 per million tokens input · $31.3 per million tokens output

Credits pay the provider’s price plus 25%; cache hits cost less.

On a monthly plan, a typical call (8k tokens in, 1k out) uses about 65 plan credits, at the provider's own price.

Provider

Claude Platform on AWS

Roleplay fit

Claude models are widely regarded for nuanced, in-character writing and for following detailed system prompts and character cards closely.

Context behavior

With a 1,000,000-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.

Cost for regular use

It is priced for quality-sensitive scenes, where writing quality and instruction-following matter more than minimizing per-message cost.

From the provider

Opus 4.7 is the next generation of Anthropic's Opus family, built for long-running, asynchronous agents. Building on the coding and agentic strengths of Opus 4.6, it delivers stronger performance on...

Supplied by Claude Platform on AWS, not written by Composite.