Grok 4.20 0309 (Reasoning)
Analysis Summary
Grok 4.20 0309 (Reasoning) sits in the Professional tier on our leaderboard, ranked #10 of 565 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 coding scores, exceptional agentic performance, and outstanding instruction following, at a competitive $2/$6 per million token price point.
Assessed May 31, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How Grok 4.20 0309 (Reasoning) compares
Grok 4.20 0309 (Reasoning) ranks #26 of 371 AI models we track for overall intelligence, #31 of 308 for coding, #15 of 283 for agentic tasks. At $2.00 per million input tokens it is cheaper than 16% of comparable models.
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Grok 4.20 0309 (Reasoning) stack up?
Compare side-by-side with other professional models.
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 |
Leaderboard Categories
Frequently asked questions about Grok 4.20 0309 (Reasoning)
How much does Grok 4.20 0309 (Reasoning) cost?
Grok 4.20 0309 (Reasoning) costs $2.00 per million input tokens and $6.00 per million output tokens.
Is Grok 4.20 0309 (Reasoning) good for coding?
On our coding benchmark index, Grok 4.20 0309 (Reasoning) ranks #31 of 308 models, placing it in the top quartile of the field for code generation and debugging.
Who created Grok 4.20 0309 (Reasoning)?
Grok 4.20 0309 (Reasoning) is developed by xAI and was released on March 10, 2026.
