OpenAI: GPT Chat Latest

OpenAI: GPT Chat Latest is a text, image, and file-capable model from OpenAI with a 400,000-token context window and up to 128,000 tokens of output per response. It supports tool use, but does not offer a reasoning mode, and structured output support is unconfirmed. That combination makes it a solid general-purpose option for multimodal workloads that benefit from long context and agentic integrations. On cost, this model sits at $5.00 per million input tokens and $30.00 per million output tokens, which places output costs at the higher end of the market. There is currently no independent benchmark coverage to validate performance, so buyers cannot rely on third-party scores when comparing it to alternatives. Teams already inside the OpenAI ecosystem, or those with specific long-context and tool-use requirements, are the most natural fit; others should weigh the premium output pricing against unproven benchmark standing before committing.