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    Anthropic · OpenAI

    Claude Opus 4.7 vs GPT-5.5 Thinking

    Compare Claude Opus 4.7 (Anthropic) and GPT-5.5 Thinking (OpenAI) on benchmarks, capabilities, and pricing.

    At a glance

    Claude Opus 4.7GPT-5.5 Thinking
    ProviderAnthropicOpenAI
    Context1M tokens1M tokens
    ModalityMultimodalMultimodal
    PricingMaxMax
    SpeedMediumSlow
    ReasoningExpertExpert

    Benchmarks

    Claude Opus 4.7

    AA Intelligence Index
    40.7points
    Artificial Analysis · Date unknownAge unknown
    Output speed
    72tokens/s
    Artificial Analysis · As of Aug 11, 2026Stale · 31d old
    API input cost
    $5.00/ 1M tokens
    Artificial Analysis · Date unknownAge unknown
    API output cost
    $25.00/ 1M tokens
    Artificial Analysis · Date unknownAge unknown
    Context window
    1M
    Catalog · As of Aug 11, 2026Stale · 31d old

    Benchmark variant: Claude Opus 4.7 (Adaptive Reasoning, Max Effort)

    AA data retrieved Sep 11, 2026 · Artificial Analysis

    GPT-5.5 Thinking

    AA Intelligence Index
    56points
    Estimated · As of Aug 11, 2026Stale · 31d old
    Output speed
    52tokens/s
    Estimated · As of Aug 11, 2026Stale · 31d old
    API input cost
    Not available
    API output cost
    Not available
    Context window
    1M
    Estimated · As of Aug 11, 2026Stale · 31d old

    AA measurements unavailable

    When to pick Claude Opus 4.7

    Pick Claude Opus 4.7 when one model must handle codebase-wide refactors, legal contract analysis, research synthesis, and customer-facing chat in the same product. Its generalist depth fits agentic workflows that mix tool calls, document reasoning, and long conversations without swapping models between steps in the pipeline.

    When to pick GPT-5.5 Thinking

    Pick GPT-5.5 Thinking for math olympiad problems, formal proofs, complex SQL planning, and multi-step scientific reasoning where extended chain-of-thought drives accuracy. It fits research pipelines, quantitative finance modeling, and competitive programming tasks where you accept higher latency in exchange for deliberate step-by-step deduction over breadth.

    Try both on yno.ai

    Switch between Claude Opus 4.7 and GPT-5.5 Thinking per task with one account.

    Frequently asked

    Which is faster, Claude Opus 4.7 or GPT-5.5 Thinking?
    Claude Opus 4.7 is rated medium and GPT-5.5 Thinking is rated slow. yno.ai surfaces output-speed scores from Artificial Analysis on each model's detail page so you can compare exact tokens-per-second figures for your workload.
    Which is cheaper, Claude Opus 4.7 or GPT-5.5 Thinking?
    Claude Opus 4.7 is on the max tier in yno.ai; GPT-5.5 Thinking is on the max tier. See the pricing page for the latest per-tier limits.
    Which is better for Complex software engineering?
    Both models support Complex software engineering. Claude Opus 4.7 brings Software engineering; GPT-5.5 Thinking brings Reasoning summaries. Run a side-by-side eval on your prompts in yno.ai to see which fits your workload.
    Can I use both Claude Opus 4.7 and GPT-5.5 Thinking in yno.ai?
    Yes. Both are available on yno.ai under your single account; you can route different stages of an agent to different models or A/B test them on the same prompt without per-provider boilerplate.

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