Grok 4 Fast alternatives
Models from providers other than xAI, ranked by similarity to Grok 4 Fast — capability overlap, context window proximity, and per-million-token price. Refreshed nightly.
Frequently asked questions
What are the best alternatives to Grok 4 Fast?
The closest alternatives to Grok 4 Fast are Mistral Small 4, Gemini 2.0 Flash and Gemini 2.5 Flash Lite. They are ranked by capability overlap, context-window similarity, and blended price.
Why might I switch from Grok 4 Fast?
Common reasons: reducing vendor lock-in, finding cheaper input/output pricing for your specific workload mix, or wanting capabilities Grok 4 Fast lacks (vision, tool use, JSON mode). Compare any two side-by-side from this page.
How is "alternative" defined here?
An alternative is a model from a different provider than xAI with similar capabilities, comparable context window, and comparable per-million-token pricing. Same-provider variants (e.g. smaller siblings of Grok 4 Fast) are excluded — for those, use the cost calculator and compare pages.