Model pricing
Grok 5 Fast pricing
Grok 5 Fast by xAI costs $0.3 per 1M input tokens and
Grok 5 Fast pricing
per 1M output tokens (cached input $0.075, batch input not recorded) as of 2026-06-13. A 1,000-input/500-output request costs $0.0008. The lowest-cost alternative with at least this context window and the same recorded reasoning category is Gemini 4.5 Nano at $0.04/$0.16; capability equivalence is not guaranteed.Notes
Grok 5 fast
Key pricing facts
| Fact | Value |
|---|---|
| Input / 1M tokens | $0.3 |
| Output / 1M tokens | $1 |
| Cached input / 1M | $0.075 |
| Batch input / output / 1M | Not recorded |
| Context window | 500,000 |
| Provider | xAI |
| Last verified | 2026-06-13 |
| Snapshot updated | 2026-06-13 |
Last updated: · Source: xAI pricing · Methodology
Frequently asked questions
What does Grok 5 Fast cost per million tokens?
Input costs $0.3 and output costs $1 per million tokens. The 1,000-input/500-output example costs $0.0008, before discounts, taxes, hidden reasoning tokens or context-tier surcharges.
Does Grok 5 Fast have cached or batch pricing?
Cached input: $0.075 per million tokens under the existing provider cache rules. Batch: not recorded in this dataset. Eligibility and cache-write charges depend on the provider; these discounts are not automatically stacked.
What is a cheaper alternative to Grok 5 Fast?
Gemini 4.5 Nano costs $0.04 input and $0.16 output per million tokens. This comparison matches context capacity and reasoning category, not benchmark quality. Test your workload before replacing a model.
How often are these prices verified?
The live pricing table synchronizes stored model records daily; public file snapshots update when the site is rebuilt. Synchronization is not independent provider verification. Snapshot updated 2026-06-13. The recorded model verification date is 2026-06-13.