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Grok 4.20 0309 v2

ReasoningClosed weights
Intelligence
25.7
Rank 167 of 744 measured models
Output speed
101 t/s
Rank 165 of 403 measured models
Price/1M
$1.56
Rank 441 of 659 measured models
Context window
2M
Rank 8 of 1199 measured models

Grok 4.20 0309 v2 (Reasoning) scores 25.7 on the Artificial Analysis Intelligence Index, ranking 167th of 744 measured models. The closest models on this index are GPT-5.5 Instant (June 2026) (26.0), Kimi K2.7 Code (25.8), and Inkling Small (25.7). At $1.56 per million tokens (3:1 input/output blended price), it is cheaper than GPT-5.5 Instant (June 2026) ($11.25) and Kimi K2.7 Code ($1.71), more expensive than Inkling Small ($0.525). With an output speed of 101 t/s, it is faster than Kimi K2.7 Code (58.2 t/s), slower than GPT-5.5 Instant (June 2026) (151 t/s) and Inkling Small (190 t/s).

Artificial Analysis Indices
Reasoning
Intelligence25.7
Rank 167 of 744 measured models
Reasoning levels
Each point is a reasoning level of this model: more reasoning often raises the score but costs more. Select a point to open that level.
Intelligence Indexmost efficient ↗Price / 1M tokens
Standard Benchmarks
GPQA Diamond91.1%
Rank 52 of 619 measured models
HLE34.5%
Rank 124 of 664 measured models
IFBench81.2%
Rank 6 of 450 measured models
AA-LCR69.0%
Rank 234 of 575 measured models
TerminalBench Hard37.9%
Rank 63 of 432 measured models
τ²-Bench93.0%
Rank 47 of 440 measured models
Additional benchmarks14
Design Arena · 3d52.1%
Design Arena · Androidnative35.0%
Design Arena · Asciiart48.2%
Design Arena · Codecategories51.8%
Design Arena · Dataviz52.0%
Design Arena · Fullstack41.1%
Design Arena · Gamedev50.1%
Design Arena · Godotgamedev38.5%
Design Arena · Htmlslides45.7%
Design Arena · Mobileapps45.4%
Design Arena · Svg52.4%
Design Arena · Uicomponent49.0%
Design Arena · Webapps49.7%
Design Arena · Website51.8%
Models at a similar level
The closest models on the Intelligence Index, one configuration per family.

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