Grok 4.20 0309 (Reasoning)
Analysis Summary
Grok 4.20 0309 (Reasoning) sits in the Professional tier on our leaderboard, ranked #40 of 523 published models on overall intelligence. At $2.00 input and $6.00 output per 1M tokens, it is among the most expensive on the market.
Editorial notes
Grok 4.20 0309 (Reasoning) from xAI delivers near-frontier intelligence and strong coding with excellent instruction following, competitive pricing at $2/$6 per million tokens, and high agentic reliability.
Assessed April 24, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Grok 4.20 0309 (Reasoning) stack up?
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Model Information
| Provider | xAI |
| Release Date | March 10, 2026 |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $2.00 | $0.002000 |
| Output | $6.00 | $0.006000 |
