Overview
Claude Opus 4.5 vs LFM2.5-1.2B-Thinking: side-by-side summary
Claude Opus 4.5 and LFM2.5-1.2B-Thinking are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Opus 4.5, from Anthropic, has a 200,000-token context window and is priced at $5/M tokens input, $25/M tokens output on OpenRouter.
LFM2.5-1.2B-Thinking, from Liquid, has a 32,768-token context window and is priced by the provider serving it on OpenRouter.
- Context window
- Claude Opus 4.5: 200,000 tokens
- LFM2.5-1.2B-Thinking: 32,768 tokens
- Price
- Claude Opus 4.5: $5/M tokens input, $25/M tokens output
- LFM2.5-1.2B-Thinking: Pricing varies by provider
- Provided by
- Claude Opus 4.5: Anthropic
- LFM2.5-1.2B-Thinking: Liquid