Grok 4.20 (Non-Reasoning)

Grok 4.20 (Non-Reasoning) is billed per use and the record publishes no free-tier allowance. The current published rates are input $1.25 per 1M tokens and output $2.50 per 1M tokens. Trial credit or promotional quota is tied to your account rather than to the model, so check the console before planning around a free tier.

Before switching production traffic to Grok 4.20 (Non-Reasoning), run a pilot on a representative slice of your traffic and check output quality, latency at peak concurrency, and cost per request. Verify the error and retry behaviour, and confirm the request limits you depend on match your plan.

A cache hit on Grok 4.20 (Non-Reasoning) requires an identical prompt prefix across requests. Put your stable instructions and reference material at the start of the prompt, keep them byte-identical, and let the changing part follow. Cached reads are then billed at the cache rate rather than the input rate.

Recorded results for Grok 4.20 (Non-Reasoning): aa_intelligence_index 21.9. Benchmark positions are a coarse filter only — run your own prompts against the candidate models before you commit, because ranking shifts with task shape and prompt style.

Grok 4.20 (Non-Reasoning) sits alongside grok-4.20-0309-non-reasoning, grok-4.20-beta-0309-non-reasoning, deepseek-v3.2-speciale in the catalog. Compare them on the dimensions that change your bill and your users’ experience: task quality on your own prompts, latency at your concurrency, context and output limits, and cost per completed task rather than per token.