TAU2
Measured May 14, 2026Source
Score
0.93
Models9 1 
xAI
Grok 4.20 0309 v2 (Reasoning)
xAIxAIUnited States
Grok 4.20 is a reasoning-focused model from xAI, optimized for complex problem-solving and logical inference. It delivers fast response times while maintaining strong performance on analytical tasks, offering a cost-effective solution for advanced reasoning applications.
ReasoningFastCheapLong context
Input / 1M tokens
$2.00Output / 1M tokens
$6.00Output tokens/s
98.33First-token seconds
27.32sSupported plans
2Benchmark history
Evaluations
Terminalbench Hard
Measured May 14, 2026Source
Score
0.38
Lcr
Measured May 14, 2026Source
Score
0.58
Ifbench
Measured May 14, 2026Source
Score
0.81
Scicode
Measured May 14, 2026Source
Score
0.46
Hle
Measured May 14, 2026Source
Score
0.32
Gpqa
Measured May 14, 2026Source
Score
0.91
Artificial Analysis Coding Index
Measured May 14, 2026Source
Score
40.5
Artificial Analysis Intelligence Index
Measured May 14, 2026Source
Score
49.3
Plan availability
Products and plans that support this model
NanoGPT
NanoGPT
NanoGPT is a privacy-focused AI platform that provides unified access to multiple text, image, video, and audio AI models through a chat interface and API, with features like auto model selection and pay-as-you-go pricing.
Discussion
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