How often do you re-fetch?

Weekly. OpenAI averages 5–10 changelog entries per month; we re-scrape, append new entries, update `dataSourcedAt`, and note any deprecations or removals.

How is this different from gpt-models-overview?

This page is a **timeline**: per-entry changelog quote + date + impact. gpt-models-overview is a **selection guide**: current catalogue price/performance comparison + decision tree.

Something on this page disagrees with the official changelog — what now?

Open an issue. The official changelog wins; we will verify and amend.

OpenAI Models Release Notes (2026, Living Document)

OpenAI's 2026 model and API release log, organised by date with verbatim changelog quotes. Covers GPT-5.6 family launch, DALL·E and Realtime Beta removal, GPT Image 2, GPT-Realtime-2.1, and other milestones.

TL;DR

Living timeline of OpenAI's 2026 model and API releases, each entry quoted verbatim from developers.openai.com/api/docs/changelog. Last fetched 2026-07-14. Headlines: 2026-07-09 GPT-5.6 family (Sol/Terra/Luna); 2026-07-06 GPT-Realtime-2.1 + 2.1 mini; 2026-05-12 DALL·E 2/3 and Realtime API Beta removed; 2026-04-21 GPT Image 2; 2026-04-24 GPT-5.5 + 5.5 Pro (1M context).

OpenAI's release notes, as maintained by GPTMap editorial: every entry carries a verbatim changelog quote, a fetch date, and an editorial impact note. Covers model releases, price changes, deprecations.

OpenAI Models Release Notes (2026, Living Document)

A timeline of OpenAI's 2026 model and API releases. Every entry quotes the changelog verbatim, with the 2026-07-14 fetch date on this snapshot.

Operating model: we re-fetch developers.openai.com/api/docs/changelog weekly, append new entries, and update dataSourcedAt. When this page disagrees with the official changelog, the official one wins.

2026-07 (latest)

2026-07-09 — Released the GPT-5.6 model family, including GPT-5.6 Sol, GPT-5.6 Terra, and GPT-5.6 Luna.
- Impact: supersedes the 2024-2025 mix of GPT-4o / o1 / o3 / GPT-4.1 / GPT-4.5. Three tiers share 1.05M context + 128K output + knowledge cutoff 2026-02-16; depth is now controlled continuously via reasoning.effort.
2026-07-06 — Released GPT-Realtime-2.1 and GPT-Realtime-2.1 mini.
- Impact: voice flagship refresh; mid-conversation tool use stabilised; WebRTC / WebSocket supported.

2026-06

2026-06-01 — GPT-5.4 and GPT-5.5 added to Amazon Bedrock.
2026-06-02 — Container sessions billing changed: "Eligible container sessions will be billed per minute with a 5-minute minimum, instead of being billed at the full 20-minute session rate."
2026-06-03 — Announced the deprecation of reusable prompt objects, the Evals platform, and Agent Builder.
2026-06-24 — Updated the chat-latest snapshot.

2026-05

2026-05-05 — Released chat-latest snapshot.
2026-05-07 — Released GPT-Realtime-2, GPT-Realtime-Translate, and GPT-Realtime-Whisper.
2026-05-12 — DALL·E 2 / DALL·E 3 deprecated and removed from the API; Realtime API Beta deprecated and removed.
- Impact: image generation migrates to GPT Image 2 (released 2026-04-21); voice migrates to the GPT-Realtime-2.x family.
2026-05-28 — Released chat-latest snapshot.

2026-04

2026-04-21 — Released GPT Image 2.
- Impact: current flagship image generation model; check Usage Policy before commercial use.
2026-04-24 — Released GPT-5.5 and GPT-5.5 Pro. "GPT-5.5 supports a 1M token context window."

2026-03

2026-03-03 — Released gpt-5.3-chat-latest.
2026-03-05 — Released GPT-5.4 and GPT-5.4 Pro.
2026-03-12 — Sora API gained character references; sora-2 / sora-2-pro now support 1080p at $0.70 per second.
2026-03-16 — Updated the gpt-5.3-chat-latest slug.
2026-03-17 — Released GPT-5.4 mini and GPT-5.4 nano.

2026-02

2026-02-03 — GPT-5.2 and GPT-5.2-Codex run about 40% faster.
2026-02-10 — Updated the gpt-5.2-chat-latest slug.
2026-02-23 — Released GPT-Realtime-1.5 and gpt-audio-1.5.
2026-02-24 — Released gpt-5.3-codex.

2026-01

2026-01-14 — Released gpt-5.2-codex.

2025 historical (retired)

GPT-5 (2025-08): first GPT-5 release; superseded by GPT-5.6 family on 2026-07-09.
OpenAI o3 / o3-pro (2025-06): reasoning lineup; later folded into the GPT-5.6 reasoning.effort continuum.
GPT-4.5 (2025-03): research preview, retired.
GPT-4o / o1 / o3 / GPT-4.1 (2024–2025): the multi-family layout that GPT-5.6 collapses.

One-line current state

Flagship family = GPT-5.6 (Sol / Terra / Luna, 2026-07-09). Voice = GPT-Realtime-2.1 (2026-07-06). Images = GPT Image 2 (2026-04-21). DALL·E 2/3 and the Realtime API Beta were both removed on 2026-05-12.

How this is built: fetch developers.openai.com/api/docs/changelog → extract (date, quote) per entry → place in the matching month block. dataSourcedAt records the most recent fetch.

Key points

2026-07-09: GPT-5.6 model family released — Sol, Terra, Luna
2026-07-06: GPT-Realtime-2.1 and GPT-Realtime-2.1 mini released
2026-04-21: GPT Image 2 released; 2026-05-12 DALL·E 2/3 removed from the API
2026-04-24: GPT-5.5 and GPT-5.5 Pro released; GPT-5.5 supports 1M token context
2026-05-07: GPT-Realtime-2 / GPT-Realtime-Translate / GPT-Realtime-Whisper released
2026-05-12: Realtime API Beta deprecated and removed
2026-06-01: GPT-5.4 / GPT-5.5 available on Amazon Bedrock
2026-06-03: deprecation announced for reusable prompt objects, Evals platform, Agent Builder

❓ Frequently asked questions

While under rebuild the page was `draft` to avoid shipping fact data we couldn't verify. On 2026-07-14 we re-fetched developers.openai.com/api/docs/changelog, hand-checked each entry against the source, and flipped status back to `published`. `dataSourcedAt` is updated on every re-fetch.

Official references

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GPTMap EditorialPublished 2026-07-14 3 min read

Test environment (EEAT)

Last tested: 2026-07-14

Model used: gpt-5.6

Release Notes #OpenAI #Release Notes #Changelog #GPT-5.6