Analysis Summary
Grok 4.20 0309 (Non-reasoning) is a faster, lighter configuration of xAI's model, with lower general intelligence but still meaningful agentic capability compared to older small models. It is positioned for tasks where speed matters more than deep multi-step reasoning.
Businesses might use it for quick classification, simple tool-calling tasks, or high-throughput automation where the reasoning variant would be overkill. It is less suited to complex analysis or nuanced content work.
Given identical pricing to the stronger reasoning variant, most teams needing genuine reasoning depth should default to that sibling instead.
Assessed July 29, 2026
Editorial notes
The non-reasoning variant of Grok 4.20 trades depth of reasoning for speed, offering moderate agentic ability at the same price as its reasoning sibling.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
The non-reasoning variant of Grok 4.20 trades depth of reasoning for speed, offering moderate agentic ability at the same price as its reasoning sibling.
How Grok 4.20 0309 (Non-reasoning) compares
Grok 4.20 0309 (Non-reasoning) ranks #133 of 401 AI models we track for overall intelligence. At $2.00 per million input tokens it is cheaper than 18% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on value. The pulled-in intelligence corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $2.00 | $0.002000 |
| Output | $6.00 | $0.006000 |
What would Grok 4.20 0309 (Non-reasoning) cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 688 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save Grok 4.20 0309 (Non-reasoning) for the hard ones. Most clients cut their estimate by 60-80%.
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Frequently asked questions about Grok 4.20 0309 (Non-reasoning)
How much does Grok 4.20 0309 (Non-reasoning) cost?
Grok 4.20 0309 (Non-reasoning) costs $2.00 per million input tokens and $6.00 per million output tokens.
Who created Grok 4.20 0309 (Non-reasoning)?
Grok 4.20 0309 (Non-reasoning) is developed by xAI and was released on March 10, 2026.
Data sourced from the OpenRouter API, Artificial Analysis, the Hugging Face Open LLM Leaderboard and our own internal testing. Scores are editorially curated by our team.
Last updated: August 6, 2026 8:38 pm