Grok 4.20 0309 (Reasoning)
xAIGrokProprietary
Description
Grok 4.20 Beta Reasoning is xAI's reasoning-optimized variant of the Grok 4.20 model family. Released as a beta on March 9, 2026, it uses thinking tokens for enhanced chain-of-thought reasoning, featuring a 2 million token context window for complex problem-solving tasks.
Release Date
2026-03-10
Parameters
—
Context Length
—
Modalities
image, text
Capability Radar
35
general
45
coding
88
reasoning
61
scienceest.
30
agents
80
multimodal
Science uses a reasoning proxy when dedicated science benchmarks are unavailable.
Rankings
| Domain | #Rank | Score | Source |
|---|---|---|---|
| Agentic Capability | 119 | 28.0 | LS |
| Code Ranking | 74 | 72.0 | AA |
| General Ranking | 31 | 79.0 | AA |
| Science | 41 | 74.0 | AA |
Benchmark Scores (LLM Stats)
Agents
Finance Agent v2
28.5%SR
AA Evaluation Indices
Intelligence Index36.5
Tau21.0
Gpqa0.9
Ifbench0.8
Lcr0.6
Scicode0.4
Terminalbench Hard0.4
Hle0.3
LLM Stats Category Scores
Long Context30
Reasoning30
Finance30
Agents30
Pricing
Input Price$2 / 1M tokens
Output Price$6 / 1M tokens
Blended Price (3:1)$3 / 1M tokens
Speed
Tokens/sec257.8
Time to First Token13.38s
Time to Answer13.38s
Provider Price Ranking
Provider Price Ranking
1 providers
ProviderInputOutput
1xAIPRIMARY
$2
$6
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