Compare INTELLECT-3 from prime-intellect and Step3 from stepfun-ai on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
INTELLECT-3 and Step3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
INTELLECT-3, from prime-intellect, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.
Step3, from stepfun-ai, has a 65,536-token context window and is priced by the provider serving it on OpenRouter.