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grok-4.20-beta-0309-reasoning vs gpt-5.1

grok-4.20-beta-0309-reasoning is cheaper on output tokens, while grok-4.20-beta-0309-reasoning offers a larger context window. Choose grok-4.20-beta-0309-reasoning or gpt-5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Specgrok-4.20-beta-0309-reasoninggpt-5.1
Provider302.AI302.AI
Input / 1M tokens$2.00$1.25
Output / 1M tokens$6.00$10.00
Context window2M400K
Parameters
Open weightsNoNo
ReleasedMar 2026Nov 2025

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.