GPT-5.5 vs Llama 4 Maverick: side-by-side summary

GPT-5.5 and Llama 4 Maverick are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

GPT-5.5, from OpenAI, has a 1,050,000-token context window and is priced at $5/M tokens input, $30/M tokens output on OpenRouter.

Llama 4 Maverick, from Meta Llama, has a 1,048,576-token context window and is priced at $0.20/M tokens input, $0.696/M tokens output on OpenRouter.

Context window

• GPT-5.5: 1,050,000 tokens
• Llama 4 Maverick: 1,048,576 tokens

Price

• GPT-5.5: $5/M tokens input, $30/M tokens output
• Llama 4 Maverick: $0.20/M tokens input, $0.696/M tokens output

Provided by

• GPT-5.5: OpenAI
• Llama 4 Maverick: Meta Llama

• GPT-5.5 model details, providers and pricing
• Llama 4 Maverick model details, providers and pricing