LFM2-2.6B vs Grok 4.1 Fast: side-by-side summary

LFM2-2.6B and Grok 4.1 Fast are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

LFM2-2.6B, from Liquid, has a 32,768-token context window and is priced by the provider serving it on OpenRouter.

Grok 4.1 Fast, from SpaceXAI, has a 2,000,000-token context window and is priced by the provider serving it on OpenRouter.

Context window

• LFM2-2.6B: 32,768 tokens
• Grok 4.1 Fast: 2,000,000 tokens

Price

• LFM2-2.6B: Pricing varies by provider
• Grok 4.1 Fast: Pricing varies by provider

Provided by

• LFM2-2.6B: Liquid
• Grok 4.1 Fast: SpaceXAI

• LFM2-2.6B model details, providers and pricing
• Grok 4.1 Fast model details, providers and pricing