Gemini 3.1 Pro Preview alternatives
Models from providers other than Google, ranked by similarity to Gemini 3.1 Pro Preview — capability overlap, context window proximity, and per-million-token price. Refreshed nightly.
Frequently asked questions
What are the best alternatives to Gemini 3.1 Pro Preview?
The closest alternatives to Gemini 3.1 Pro Preview are GPT-5.4, Claude Sonnet 4.5 and Claude Sonnet 4.6. They are ranked by capability overlap, context-window similarity, and blended price.
Why might I switch from Gemini 3.1 Pro Preview?
Common reasons: reducing vendor lock-in, finding cheaper input/output pricing for your specific workload mix, or wanting capabilities Gemini 3.1 Pro Preview 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 Google with similar capabilities, comparable context window, and comparable per-million-token pricing. Same-provider variants (e.g. smaller siblings of Gemini 3.1 Pro Preview) are excluded — for those, use the cost calculator and compare pages.