AI Progress Tracker

    GPT-5.5 · gpt-5.5

    OpenAI · 23 Apr 2026

    Ask the Advisor about this model
    71from 7
    benchmarks

    GPT-5.5 is the OpenAI model designated by this profile. Not yet confirmed by public reporting.

    context: 1.1Mfileimagetext$5.00 / $30 per 1M tokens (in / out)

    Benchmark results

    Every figure links to where it was published. Compare like with like — harnesses and prompt setups differ between vendors.

    BenchmarkScoreSource
    GPQA DiamondPhD-level science questions90.7%5 May 2026View
    OTIS Mock AIME 2024-25Competition mathematics84.4%7 Aug 2026View
    Terminal-BenchLong-horizon command-line agent tasks84.7%23 Apr 2026View
    SimpleQA VerifiedShort factual questions (hallucination resistance)63%27 Aug 2026View
    SWE-bench VerifiedResolving real GitHub issues80.6%24 Apr 2026View
    FrontierMath51.7%23 Apr 2026View
    LMArena TextHuman preference Elo from blind chat votes (not a percentage)1472 Elo22 Oct 2026View

    Weighted mean of 2 verified benchmark results: SWE-bench Verified 80.6%, FrontierMath 51.7%.

    Capabilities

    • Not yet confirmed by public reporting.

    What improved

    • Not yet confirmed by public reporting.

    Known flaws & limitations

    • Not yet confirmed by public reporting.

    Risks, safety & security issues

    • Not yet confirmed by public reporting.

    Good fit for

    • Not yet confirmed by public reporting.

    Poor fit for

    • Not yet confirmed by public reporting.
    Security & risk dashboardLatest vulnerabilities, advisories and real-world incidents for GPT-5.5

    References

    Profile last reviewed 10/24/2026 and re-checked automatically every few hours against the vendor's published documentation, papers and public leaderboards. Scores come from the cited benchmark results above — confirm limits and pricing against the provider's own documentation before building on them.