Changelog

This page lists user-visible changes to the EU GPT public API. Internal changes — model upgrades behind auto, infrastructure moves, performance improvements — are not listed here unless they affect the wire contract.

Versioning policy#

• The current major version is v1, served at /v1/.... Breaking changes will land on a new major prefix (/v2/...).
• New optional request fields and new streaming event types may land at any time. Clients should ignore unknown event types and continue to send only documented fields.
• New response fields may land at any time. Clients should ignore unknown fields.
• Deprecations announce themselves here with at least 90 days’ notice before removal.

2026-05#

• Initial public release. POST /v1/responses is generally available with streaming and non-streaming modes. OpenAPI 3.1 spec published at /openapi.json.
• Auto-approved tools for API callers: web_search, web_fetch, calculator, current_datetime.
• API key authentication via Authorization: Bearer eugpt_<token>. Keys are managed in the web UI.

Upcoming#

Items below are committed to the roadmap but do not have firm dates. Subscribe to the changelog feed (forthcoming) for announcements.

• POST /v1/files — multipart file upload to mint a file_id from a script.
• GET /v1/conversations — list, fetch, and delete conversations programmatically.
• Custom tools via a per-request tools[] parameter mirroring the Chat Completions shape.
• Audio transcription at POST /v1/audio/transcriptions, OpenAI-compatible.

Deprecations#

None yet.