Cogito V2 Preview Llama 405B vs GPT-5.1: side-by-side summary

Cogito V2 Preview Llama 405B and GPT-5.1 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Cogito V2 Preview Llama 405B, from deepcogito, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.

GPT-5.1, from OpenAI, has a 400,000-token context window and is priced at $1.25/M tokens input, $10/M tokens output on OpenRouter.

Context window

• Cogito V2 Preview Llama 405B: 131,072 tokens
• GPT-5.1: 400,000 tokens

Price

• Cogito V2 Preview Llama 405B: Pricing varies by provider
• GPT-5.1: $1.25/M tokens input, $10/M tokens output

Provided by

• Cogito V2 Preview Llama 405B: deepcogito
• GPT-5.1: OpenAI

• Cogito V2 Preview Llama 405B model details, providers and pricing
• GPT-5.1 model details, providers and pricing