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Anthropic · Released Apr 16, 2026

Claude Opus 4.7

Stronger Opus tier for advanced software work and high-stakes reasoning.

  • Proprietary
  • Reasoning
  • Tool calling
  • Vision
Capability
156.4ECI · #22 of 148
Input
$5.00per 1M tokens
Output
$25.00per 1M tokens
Context
1M128K max output
Pricing

What it costs

Input
$5.00per million tokens
Output
$25.00per million tokens
Cached input
$0.50per million tokens
Cache write
$6.25per million tokens
Blended (3:1)
$10.00pricier than 93% of priced models

Typical monthly bills

Monthly usageEstimated cost
Side project2M input + 0.5M output tokens$22.50
Team assistant25M input + 5M output tokens$250.00
Production app250M input + 50M output tokens$2,500

Official Anthropic API price, as listed on models.dev.

Capability

Independent benchmarks

156.4Epoch Capabilities Index
#22 of 148 scored models
88Median 146167

The shaded band is Epoch AI’s confidence range (154.4–158.4); the tick marks the median scored model.

  • GPQA DiamondGraduate-level science questions · xhigh setting90.2%
  • FrontierMath Tiers 1–3Research-level mathematics · max setting70.2%
  • OTIS Mock AIME 2024–2025Competition mathematics · xhigh setting97.8%
  • SWE-bench VerifiedFixing real GitHub issues · max setting83.5%
  • SimpleQA VerifiedShort factual questions · xhigh setting51.7%

Scores from Epoch AI, run independently of Anthropic.

Specifications

The details

Lab
Anthropic
Released
Apr 16, 2026
Knowledge cutoff
Jan 31, 2026
Context window
1,000,000 tokens
Max output
128,000 tokens
Inputs
Text, Images, PDFs
Output
Text
Reasoning
Adjustable effort low · medium · high · xhigh · max
Tool calling
Yes
Structured output
Yes
Weights
Proprietary
API model ID
claude-opus-4-7on Anthropic
Availability
38 API providerslisted on models.dev

Anthropic model documentation

Lab-reported

What Anthropic claims

Published by the lab at launch. Settings vary, so compare these only with care.

BenchmarkScoreSettingSource
SWE-Bench Pro64.3 resolve rate—Source
Terminal-Bench v2.166.1 success rate—Source
SWE-Atlas Refactoring48.57—Source
Artificial Analysis Coding Agent Index66.6maxSource
SWE-Atlas Codebase QnA81maxSource
SWE-Bench Pro44.9maxSource
Terminal-Bench v2.173.8maxSource
Artificial Analysis Coding Agent Index61.2mediumSource
SWE-Atlas Codebase QnA78.4mediumSource
SWE-Bench Pro34.4mediumSource
Terminal-Bench v2.170.6mediumSource
Artificial Analysis Coding Agent Index59.9mediumSource
Same lab

More from Anthropic

Questions

About Claude Opus 4.7

How much does Claude Opus 4.7 cost?

Claude Opus 4.7 costs $5.00 input / $25.00 output per million tokens (official Anthropic API price). Cached input is $0.50 per million tokens, and writing to the cache costs $6.25. At a 3:1 input-to-output mix that is $10.00 per million tokens, more expensive than 93% of the 360 priced models we track.

What is the context window of Claude Opus 4.7?

Claude Opus 4.7 accepts up to 1,000,000 tokens per request and can write up to 128,000 tokens in one response.

How good is Claude Opus 4.7?

Epoch AI gives Claude Opus 4.7 a Capabilities Index score of 156.4 (likely range 154.4–158.4), ranking it #22 of 148 models Epoch has scored. Epoch AI benchmark results: GPQA Diamond 90.2%, FrontierMath Tiers 1–3 70.2%, OTIS Mock AIME 2024–2025 97.8%, SWE-bench Verified 83.5%, SimpleQA Verified 51.7%.

Is Claude Opus 4.7 open source?

No. Claude Opus 4.7 is proprietary; you use it through Anthropic’s API or partner platforms.

What inputs does Claude Opus 4.7 support?

Claude Opus 4.7 accepts text, images and PDFs and replies in text. It is a reasoning model with low, medium, high, xhigh and max effort settings, supports tool calling and can return structured JSON output.

When was Claude Opus 4.7 released?

Anthropic released Claude Opus 4.7 on Apr 16, 2026. Its training data runs to Jan 31, 2026.

What are the best alternatives to Claude Opus 4.7?

The closest current models from other labs on capability, price and release date are GPT-5.5 (OpenAI, ECI 159.2, $5.00 / $30.00), Kimi K3 (Moonshot AI, ECI 157.6, $3.00 / $15.00), Gemini 3.1 Pro Preview (Google, ECI 154.8, $2.00 / $12.00) and Qwen3.8 Max (Alibaba (Qwen), ECI 156.6, $2.00 / $6.00).