GPT-5-SEARCH-API
OpenAI's GPT-5-SEARCH-API is a chat model capable of various tasks, including text generation, reasoning, and web search. It is genuinely best at handling diverse inputs, such as images, PDFs, and text, and can also perform function calling and streaming.
Input
Output
Context
272K
Max Output
128K
Parameters
-
Technical Specifications
Input Modalities
Output Modalities
Capabilities
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Frequently asked questions about GPT-5-SEARCH-API
Answered from the entry's own fields: context, license, modalities, evidence, serving and the memory to self-host.
GPT-5-SEARCH-API advertises a context window of 272,000 tokens, with a maximum output of 128,000 tokens in a single response. The figure is the creator's published maximum; a given host may serve less, and the gateway routes on what each host actually serves.
No. GPT-5-SEARCH-API is a proprietary model (license: Proprietary): its weights are not distributed, and it runs only through OpenAI's own API or a host with access to it.
GPT-5-SEARCH-API accepts Image and Text and produces Text. The capabilities card on this page lists which API features each deployment honours, such as function calling and structured output, with the source each was checked against.
No published benchmark result for GPT-5-SEARCH-API is in the catalog yet, so the model is shown as unmeasured. It is not ranked or estimated; the router treats it as unknown for every task until a suite measures it.
Not on the managed pool today; GPT-5-SEARCH-API is listed for reference and comparison. Connect your own provider key or endpoint that serves it and the gateway runs it on your account, with routing decisions recorded the same way.
GPT-5-SEARCH-API cannot be self-hosted: its weights are not distributed. It is used through an API, either OpenAI's own or the Inferbase gateway where it is served.
Fields collected from public registries, host APIs and benchmark publishers, each tagged with its source.
Last updated: Sep 11, 2026
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