Release archive
The timeline.
Every model we track—released, announced or still a signal on the horizon.
OpenAI · FEB 24, 2026
Code-specialised variant tuned for repository-scale edits.
No reviewed reports yet.
Read more →OpenAI · MAR 06, 2026
General-purpose update with improved tool-use reliability.
$10.00/Mtok
No reviewed reports yet.
Read more →OpenAI · MAR 17, 2026
Smallest GPT-5.4 tier, aimed at high-volume classification.
No reviewed reports yet.
Read more →OpenAI · APR 24, 2026
Flagship update with a substantially larger context window.
No reviewed reports yet.
Read more →OpenAI · JUL 09, 2026
Agentic tier of the GPT-5.6 family.
- CodingUnder review: claimed to fix a race condition in a submitted snippet, reporter says the fix looks plausible but is still testing it under load.
OpenAI · SEP 03, 2026
First model in the GPT-6 generation, which OpenAI describes as a new frontier on computer and browser use and its best model for software engineering to date, citing bug detection, terminal tasks and codebase analysis. It is also the first model OpenAI has designated as reaching the Critical cybersecurity threshold under its Preparedness Framework, and it ships under added safeguards, with the widest access limited at launch to vetted testers in the Daybreak program.
$10.00/Mtok
- CodingOpus 5.5 vs. GPT-6 Astra, cost comparison. We paired both of these with Tesseract to recreate our launch video.
- CodingI asked GPT-6 Astra to make a portfolio inside a console similar to a Gameboy and LOOK AT THIS
- CodingI vibe coded for 8 hours straight on live stream yesterday. GPT 6 Astra is unreal.
OpenAI · SEP 08, 2026
The higher-precision GPT-Image-2.5 API tier for detailed creative work, trading generation time for control and fidelity.
No reviewed reports yet.
Read more →OpenAI · SEP 08, 2026
The faster GPT-Image-2.5 API tier, with improvements to image quality, editing and generation speed.
No reviewed reports yet.
Read more →OpenAI · SEP 10, 2026
Full-duplex voice model for the API that handles simultaneous listening and speaking while delegating deeper reasoning and tool calls to a backend model.
No reviewed reports yet.
Read more →OpenAI · SEP 22, 2026
OpenAI's efficient reasoning model for focused, high-volume workloads, with text and image input through the Responses and Chat Completions APIs.
$0.50/Mtok
- Other@bridgebench: We gave 4 models the same prompt: build a 3D rocket launch. GPT 6 Luna: <$0.01, 1 minute GPT 6 Sol: $0.11, 1 minute Grok 4.7: $0.29, 11 minutes Claude Opus 5.5: $1.52, 12 minutes GPT 6 Luna built a rocket launch scene in 65 seconds for less than a penny. The cost of frontier AI is collapsing in real time.
OpenAI · SEP 22, 2026
OpenAI's reasoning model for complex coding and agentic workflows, with text and image input through the Responses and Chat Completions APIs.
$10.00/Mtok
- Other@bridgebench: We gave 4 models the same prompt: build a 3D rocket launch. GPT 6 Luna: <$0.01, 1 minute GPT 6 Sol: $0.11, 1 minute Grok 4.7: $0.29, 11 minutes Claude Opus 5.5: $1.52, 12 minutes GPT 6 Luna built a rocket launch scene in 65 seconds for less than a penny. The cost of frontier AI is collapsing in real time.
OpenAI · SEP 29, 2026
A major upgrade to GPT-6 Sol that OpenAI says brings near-Astra performance to agentic coding, computer use and professional work at one-fifth of Astra's standard token prices.
$10.00/Mtok
No reviewed reports yet.
Read more →