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OpenAI: GPT-5.5 vs Anthropic: Claude Opus 4.7

Side-by-side benchmark comparison based on independent public data. Scores, pricing, context, and task breakdown.

▸ verdict
OpenAI: GPT-5.5
91.4
higher score
vs
Anthropic: Claude Opus 4.7
87.5
OpenAI: GPT-5.5 leads with a higher composite benchmark score. It's the stronger choice for general-purpose tasks based on public benchmark data.
▸ score breakdown
TaskOpenAI: GPT-5.5Anthropic: Claude Opus 4.7Δ
Overall91.487.5+3.9
Coding—69.9—
Reasoning73.868.2+5.6
Math———
Writing90.0——
JSON———
▸ specs & pricing
AttributeOpenAI: GPT-5.5Anthropic: Claude Opus 4.7
ProviderOpenaiAnthropic
Context window1M1M
Input $/M tokens$5.00/M$5.00/M
Output $/M tokens$30.00/M$25.00/M
Weightsproprietaryproprietary
▸ frequently asked

Is OpenAI: GPT-5.5 better than Anthropic: Claude Opus 4.7?

OpenAI: GPT-5.5 scores higher overall (91.4 vs 87.5) in the benchmark composite. The best choice depends on the specific use case and budget.

Which is cheaper: OpenAI: GPT-5.5 or Anthropic: Claude Opus 4.7?

Both models are priced equally at $5/M input tokens.

Which model is better for coding?

Both models perform similarly on coding benchmarks (SWE-Bench, Aider Polyglot, LiveCodeBench).