OpenAI releases GPT-5.1 (batch)

GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive rea

Type: MODEL_LAUNCH
Detection: listing
Confidence: medium
Status

Related entities

ModelGPT-5.1 (batch)CompanyOpenAI

Primary source

OpenRouter models API · openrouter.ai/openai/gpt-5.1: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.