OpenAI releases GPT-5.5 Pro (batch)

GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...

Type: MODEL_LAUNCH
Detection: listing
Confidence: medium
Status

Related entities

ModelGPT-5.5 Pro (batch)CompanyOpenAI

Primary source

OpenRouter models API · openrouter.ai/openai/gpt-5.5-pro:batch ↗

Structured listing of 400+ hosted models: prices per token, context length, modalities, supported parameters and listing date. Prices are OpenRouter's listed prices, which usually mirror first-party pricing but can differ.