The most capable free Google model is Gemma 4 31B (free), scoring 39.2 on the Intelligence Index at no per-token cost via OpenRouter. Gemma 4 26B A4B (free) (31.2) and Lyria 3 Pro Preview (—) round out the top three.
The best large language models with a free tier, ranked by intelligence. Capable AI models you can use at no cost via OpenRouter.
The most capable free Google model is Gemma 4 31B (free), scoring 39.2 on the Intelligence Index at no per-token cost via OpenRouter. Gemma 4 26B A4B (free) (31.2) and Lyria 3 Pro Preview (—) round out the top three.
Gemma 4 26B A4B (free) (31.2) is the closest alternative on this metric, followed by Lyria 3 Pro Preview (—). See the full ranking above for the tradeoffs.
modelgrep tracks 26 Google models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by Gemini 3 Flash Preview. 4 of them qualify for this ranking.