# GPT-5.5 API via PiAPI — status page

Landing page: https://piapi.ai/gpt-5-5-api

## Status (as of June 18, 2026)

- GPT-5.5 API access through PiAPI: COMING SOON (planned, not yet live).
- OpenAI has published GPT-5.5 model and pricing details in its own docs:
  https://openai.com/index/introducing-gpt-5-5/
  https://developers.openai.com/api/docs/models/gpt-5.5
- PiAPI-specific endpoint names, request examples, usage pricing, and
  production availability will be published when integration is finalized.
- No confirmed PiAPI launch date or PiAPI pricing yet — do not quote one.

## What GPT-5.5 is positioned for

Autonomous agentic execution, advanced coding and multi-file refactoring
(Codex-style workflows), deep reasoning modes, computer and tool use,
strict prompt following and structured JSON outputs.

## LLM APIs available on PiAPI today

While waiting for GPT-5.5, PiAPI's OpenAI-compatible LLM endpoint is live:

POST https://api.piapi.ai/v1/chat/completions
Auth: Authorization: Bearer <API_KEY>
Body: { "model": "...", "messages": [{ "role": "user", "content": "…" }] }

Models include gpt-4o, gpt-4o-mini, gpt-4.1 family, claude-opus-4-6,
claude-sonnet-4-6, gemini-2.5-flash-nothinking, plus DeepSeek API
(https://piapi.ai/deepseek). Docs: https://piapi.ai/docs/llm-api/completions

Pricing examples (see docs for the full, current list):
- gpt-4o: 50% of OpenAI's official pricing
- gpt-4o-mini: 75% of OpenAI's official pricing
- claude-opus: $3.75 / 1M input tokens, $18.75 / 1M output tokens

## Quick start (available models)

1. Get API key: https://piapi.ai/workspace/key
2. POST /v1/chat/completions with an available model id
3. For GPT-5.5: watch https://piapi.ai/gpt-5-5-api for availability,
   request format, pricing, and documentation updates.

Support: support@piapi.ai