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AI model reference · 2026

Claude Opus 4.7

Anthropic: Claude Opus 4.7 logoAnthropicModel details, evidence, and API facts

Opus 4.7 is the next generation of Anthropic's Opus family, built for long-running, asynchronous agents.

Text generation
Image input
Reasoning
Provider endpoint accepts tool parameters
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Context window
1,000,000 tokens
Maximum output
128,000 tokens
Base provider API input
$5.00 / 1M tokens
Base provider API rate
Published evidence
2 benchmarks, 3 Arena results

Overview

About Claude Opus 4.7

A concise catalog overview. Technical limits and published evaluation evidence are listed separately below.

Opus 4.7 is the next generation of Anthropic's Opus family, built for long-running, asynchronous agents.

text
multimodal
reasoning

Published evaluations

Benchmark results

Only results mapped to this exact model and backed by a named source appear here. Different evaluation protocols are not treated as interchangeable.

Source-backed benchmark results for Claude Opus 4.7
BenchmarkScoreEvaluation detailsSource
Terminal-Bench 2.1Version 2.1 of the benchmark for completing realistic tasks in terminal environments. Harness, resource limits, and attempt count are part of the protocol.68.9%±1.4Mean task successVersion: Terminal-Bench 2.1, Harbor dataset revision 6 · Split: 89 revised tasks · Harness: Claude Code · Attempts: Five attempts per task · Reasoning effort: maxProtocol note: Every result retains its agent. Rows with different agents are not model-only comparisons.; Agent: Claude Code; Run date: 2026-05-01; Confidence interval: ±1.4Methodology Terminal-BenchBenchmark owner
LiveBenchA contamination-resistant benchmark refreshed on a fixed release cadence. Scores from different LiveBench releases must never be compared as the same protocol.76.5%Mean of category averagesVersion: LiveBench 2026-06-25 · Split: 2026-06-25 release, 23 tasks across seven categories · Reasoning effort: xhighProtocol note: Overall is the mean of category averages. This protocol is not comparable with the 2026-01-08 release.Methodology LiveBenchBenchmark owner

Human preference

Arena results

Arena scores come from blind human preference votes. They are reported separately from task benchmarks and are not used as substitutes for missing benchmark results.

Arena results for Claude Opus 4.7
CategoryScoreRankVotesStatus
Arena TextBlind human preference score for text responses.1,494±4#661,204Published
Arena WebDevBlind human preference score for code and web development.1,558±6#1113,552Published
Arena SearchBlind human preference score for search-grounded responses.1,233±5#468,515Published

Technical reference

Specifications and API facts

Technical limits and reference provider prices come from the current catalog unless a reviewed external source is listed. Missing values stay marked as unavailable.

Model
Provider
Anthropic
Release date
Not available in reviewed sources
Catalog added
Apr 16, 2026
Context window
1,000,000 tokens
Maximum output
128,000 tokens
Knowledge cutoff
Not available in reviewed sources
License
Not available in reviewed sources
Capabilities and API
Input types
Text, Image, File
Output types
Text
Reasoning
Supported
Provider endpoint tool parameters
Accepts tool parameters
Base provider API input
$5.00 / 1M tokens
Base provider cached input
$0.50 / 1M tokens
Base provider API output
$25 / 1M tokens

These are reference provider API rates, not Writingmate checkout charges. Access in Writingmate follows the allowances of your Writingmate plan.

Provenance

Sources and update status

Source links are attached to the facts and evaluations they support. Catalog-only values are not presented as independently verified claims.

Evidence last updated Aug 12, 2026.

Catalog record updated Apr 16, 2026.

Catalog-added dates describe when a model entered the catalog, not necessarily its public release date.

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