The most capable free LLM is Nemotron 3 Ultra (free), scoring 47.7 on the Intelligence Index at no per-token cost via OpenRouter. Gemma 4 31B (free) (39.2) and Nemotron 3 Super (free) (36.0) 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 LLM is Nemotron 3 Ultra (free), scoring 47.7 on the Intelligence Index at no per-token cost via OpenRouter. Gemma 4 31B (free) (39.2) and Nemotron 3 Super (free) (36.0) round out the top three.
Gemma 4 31B (free) (39.2) is the closest alternative on this metric, followed by Nemotron 3 Super (free) (36.0). See the full ranking above for the tradeoffs.