GPT-5.5 Pro vs GPT-5.5

Compare GPT-5.5 Pro from OpenAI and GPT-5.5 from OpenAI 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 Pro vs GPT-5.5: side-by-side summary

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

GPT-5.5 Pro, from OpenAI, has a 1,050,000-token context window and is priced at $30/M tokens input, $180/M tokens output on OpenRouter.

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.

Context window: GPT-5.5 Pro: 1,050,000 tokens
GPT-5.5: 1,050,000 tokens
Price: GPT-5.5 Pro: $30/M tokens input, $180/M tokens output
GPT-5.5: $5/M tokens input, $30/M tokens output
Provided by: GPT-5.5 Pro: OpenAI
GPT-5.5: OpenAI

GPT-5.5 Pro vs GPT-5.5

Compare GPT-5.5 Pro from OpenAI and GPT-5.5 from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.