AI Progress Tracker

    Grok 4.20 0309 Reasoning · grok-4.20-0309-reasoning

    xAI · 17 Feb 2026

    Ask the Advisor about this model
    73from 3
    benchmarks

    This profile covers the Grok 4.20 0309 Reasoning model designation associated with xAI. Not yet confirmed by public reporting.

    text

    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 questions89.3%13 Jul 2026View
    OTIS Mock AIME 2024-25Competition mathematics92.2%13 Jul 2026View
    SimpleQA VerifiedShort factual questions (hallucination resistance)30.2%27 Aug 2026View

    Weighted mean of 3 verified benchmark results: GPQA Diamond 89.3%, OTIS Mock AIME 2024-25 92.2%, SimpleQA Verified 30.2%.

    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 Grok 4.20 0309 Reasoning

    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.