Compare Claude Opus 5.5 from Anthropic and LFM2.5-2.6B from Liquid on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
Claude Opus 5.5 and LFM2.5-2.6B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Opus 5.5, from Anthropic, has a 1,000,000-token context window and is priced at $4/M tokens input, $20/M tokens output on OpenRouter.
LFM2.5-2.6B, from Liquid, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.