Compare GPT-5.5 from OpenAI and Llama 4 Maverick from Meta Llama on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
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 $0.1875/M tokens input, $0.6525/M tokens output on OpenRouter.
| GPT-5.5 | Llama 4 Maverick | |
|---|---|---|
| Input price | $5/M tokens | $0.1875/M tokens |
| Output price | $30/M tokens | $0.6525/M tokens |
| Context window | 1,050,000 tokens | 1,048,576 tokens |
| Intelligence Index | 38.4 | 10.0 |
| Coding Index | 74.9 | 16.3 |
| Agentic Index | 36.4 | 0.6 |
| Latency (p50) | 3.33 s | 0.66 s |
| Throughput (p50) | 55.0 tok/s | 15.0 tok/s |
GPT-5.5 has the longer context window at 1,050,000 tokens, compared with 1,048,576 tokens for Llama 4 Maverick.
GPT-5.5 is faster on OpenRouter, generating a median 55.0 tokens per second compared with 15.0 tokens per second for Llama 4 Maverick.
GPT-5.5 scores higher on coding, with an Artificial Analysis Coding Index of 74.9 compared with 16.3 for Llama 4 Maverick.