GPT-5 (batch)

GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy in high-stakes use cases. It supports test-time routing features and advanced prompt understanding, including user-specified intent like "think hard about this." Improvements include reductions in hallucination, sycophancy, and better performance in coding, writing, and health-related tasks.

ChatOpenAI400k tokens$0.6813 / $5.4503 · 1M

openai/gpt-5:batch

Context
400k tokens
Completion cap
128,000
Tools
Yes
JSON
Yes
Released
2025-08-07

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5:batch",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is GPT-5 (batch)?
GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy in high-stakes use cases. It supports test-time routing features and advanced prompt understanding, including user-specified intent like "think hard about this." Improvements include reductions in hallucination, sycophancy, and better performance in coding, writing, and health-related tasks. GPT-5 (batch) runs on the Geek Hub API (OpenAI-compatible). Model id: openai/gpt-5:batch.
Is GPT-5 (batch) free?
No. Input is $0.6813 per 1M tokens and output is $5.4503 per 1M tokens on Geek Hub (markup included).
What is the context length of GPT-5 (batch)?
GPT-5 (batch) has a 400k tokens context window. It supports up to 128,000 completion tokens.
Does GPT-5 (batch) support tool calling and structured outputs?
GPT-5 (batch) accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
When was GPT-5 (batch) released?
GPT-5 (batch) was released on 2025-08-07.

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