Llama 3.3 Nemotron Super 49B V1.5 vs GPT-5.1 Chat: side-by-side summary

Llama 3.3 Nemotron Super 49B V1.5 and GPT-5.1 Chat are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Llama 3.3 Nemotron Super 49B V1.5, from Nvidia, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.

GPT-5.1 Chat, from OpenAI, has a 128,000-token context window and is priced by the provider serving it on OpenRouter.

Context window

• Llama 3.3 Nemotron Super 49B V1.5: 131,072 tokens
• GPT-5.1 Chat: 128,000 tokens

Price

• Llama 3.3 Nemotron Super 49B V1.5: Pricing varies by provider
• GPT-5.1 Chat: Pricing varies by provider

Provided by

• Llama 3.3 Nemotron Super 49B V1.5: Nvidia
• GPT-5.1 Chat: OpenAI

• Llama 3.3 Nemotron Super 49B V1.5 model details, providers and pricing
• GPT-5.1 Chat model details, providers and pricing