Frontier BenchSI model benchmarks · Jul 2026
ModelsCompareLabsMethodology
All models
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Grok 4.20

xAI

2M context at frontier-cheap output pricing. Strong on raw math and HumanEval.

FrontierProprietary2M contextReleased Mar 2026textvisioncode

API price · per 1M tokens

$2/$6

input / output

≈ $3.00/M blended

Benchmarks

Bar shows this model's score; tick shows the best score across all tracked models for context.

SWE-bench VerifiedReal GitHub issues, human-verified patches. The standard coding-agent benchmark.
78.0/ best 90.1
SWE-bench Pro2,294 harder real-world GitHub issues. Where the frontier separates now.
56.0/ best 69.2
Terminal-Bench 2.xAgentic command-line workflows — planning, iteration, tool coordination.
67.0/ best 84.0
GPQA DiamondGoogle-proof graduate-level science Q&A. General reasoning proxy.
74.5/ best 94.4
MMLU-ProMulti-task language understanding across 120+ academic subjects.
80.0/ best 93.0
HumanEval+Functional code generation from docstrings.
94.0/ best 96.0
MATH-500Competition-style math problems.
96.5/ best 97.8
Humanity's Last ExamHardest reasoning benchmark (with tools). ~50% = near frontier.
40.0/ best 57.9
AIME 2025American Invitational Mathematics Examination.
91.7/ best 96.5

Other xAI models

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Grok 4.1 Fast

Fast / Cheap

≈$0.28/M

Built by GLM-5.2 · Scores are directional, drawn from public mid-2026 benchmarks.

SWE-bench, GPQA, MMLU, AIME, HLE etc. are trademarks of their respective owners.