Mistral Small 4 vs GPT-5.6 Terra: side-by-side summary

Mistral Small 4 and GPT-5.6 Terra are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Mistral Small 4, from Mistral AI, has a 262,144-token context window and is priced at $0.15/M tokens input, $0.60/M tokens output on OpenRouter.

GPT-5.6 Terra, from OpenAI, has a 1,050,000-token context window and is priced at $2/M tokens input, $12/M tokens output on OpenRouter.

Context window

• Mistral Small 4: 262,144 tokens
• GPT-5.6 Terra: 1,050,000 tokens

Price

• Mistral Small 4: $0.15/M tokens input, $0.60/M tokens output
• GPT-5.6 Terra: $2/M tokens input, $12/M tokens output

Provided by

• Mistral Small 4: Mistral AI
• GPT-5.6 Terra: OpenAI

• Mistral Small 4 model details, providers and pricing
• GPT-5.6 Terra model details, providers and pricing