# GPT-5 Search API

> GPT-5 Search API is a proprietary language model from OpenAI, released on 14 Oct 2025. It accepts text, images and PDFs and generates text, with a 272K-token context window and up to 128K output tokens per response.

Source page: https://www.aimodel.directory/models/gpt-5-search-api
Last verified: 21 Oct 2026

## Specifications

- **Developer:** OpenAI
- **Release date:** 14 Oct 2025 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Status:** Generally available (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Weights:** Proprietary (API only) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Context window:** 272K (272,000 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Max output:** 128K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Input:** Text, images and PDFs (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Output:** Text (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Reasoning mode:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Tool calling:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)
- **Structured output:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/merge-gateway/models/openai/gpt-5-search-api.toml)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|

## FAQ

### What is the context window of GPT-5 Search API?

GPT-5 Search API has a context window of 272,000 tokens (272K) and can generate up to 128,000 tokens in a single response, according to models.dev.

### Is GPT-5 Search API open source?

No. GPT-5 Search API is a proprietary model; OpenAI has not released its weights.

### When was GPT-5 Search API released?

OpenAI released GPT-5 Search API on 14 Oct 2025, according to models.dev.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "GPT-5 Search API", https://www.aimodel.directory/models/gpt-5-search-api