Calendarby GlyphTech · Releases
OpenAI Prompt Cache Diagnostics is generally available in the Responses API
Tue, September 8, 2026
2 mo ago
For GPT-5.6 and later, developers can compare cache reuse against a previous response, see reasons for cache misses and follow guidance to improve cache hit rates.
Every year
OpenAI updates chat-latest to the latest ChatGPT Instant modelopenaiAn event.5 mo agoopenaiDetails →OpenAI releases GPT-Realtime-2.1 and GPT-Realtime-2.1 miniopenaiAn event.4 mo agoopenaiDetails →OpenAI releases the GPT-5.6 model family: Sol, Terra and LunaopenaiAn event.4 mo agoopenaiDetails →OpenAI releases GPT Transcribe and GPT Live TranscribeopenaiAn event.3 mo agoopenaiDetails →OpenAI releases an official Terraform provideropenaiAn event.3 mo agoopenaiDetails →OpenAI Fast mode supports long-context requests for GPT-5.6 modelsopenaiAn event.3 mo agoopenaiDetails →OpenAI updates chat-latest to the newest ChatGPT modelopenaiAn event.3 mo agoopenaiDetails →OpenAI announces Ultrafast mode for GPT-5.6 Sol in limited previewopenaiAn event.3 mo agoopenaiDetails →OpenAI gpt-image-2 adds transparent backgrounds in previewopenaiAn event.3 mo agoopenaiDetails →OpenAI launches a Prompt Caching dashboardopenaiAn event.3 mo agoopenaiDetails →OpenAI API mTLS and X.509 workload identity federation are GAopenaiAn event.2 mo agoopenaiDetails →OpenAI releases GPT-6 Astra for complex end-to-end workopenaiAn event.2 mo agoopenaiDetails →OpenAI GPT-Rosalind is GA for approved life sciences researchopenaiAn event.2 mo agoopenaiDetails →
OpenAI Prompt Cache Diagnostics is generally available in the Responses APIopenaiAn event.2 mo agoopenai
OpenAI releases GPT Image 2.5 Sunburst and GPT Image 2.5 FlareopenaiAn event.2 mo agoopenaiDetails →OpenAI GPT-Live 1 is generally available for full-duplex voiceopenaiAn event.2 mo agoopenaiDetails →Introducing the Agents APIopenaiAn event.2 mo agoopenaiDetails →OpenAI Agents API enters public betaopenaiAn event.2 mo agoopenaiDetails →OpenAI releases GPT-6 Sol and GPT-6 Luna reasoning modelsopenaiAn event.2 mo agoopenaiDetails →Released GPT-6.1 Sol (gpt-6.1-sol) for complex coding and professional work at a lower cost than GPT-6 AstraopenaiAn event.41 days agoopenaiDetails →Simplified API usage tiers from five to three: Build, Launch, and GrowopenaiAn event.34 days agoopenaiDetails →Released the Decisions API in beta with gpt-6-lunaopenaiAn event.34 days agoopenaiDetails →Updated the chat-latest snapshot, which points to the latest model available in ChatGPT for Plus, ProopenaiAn event.33 days agoopenaiDetails →Released prompt-to-voice for all API customersopenaiAn event.24 days agoopenaiDetails →Build more responsive apps with the Decisions APIopenaiAn event.18 days agoopenaiDetails →The Decisions API is now generally available with gpt-6-lunaopenaiAn event.18 days agoopenaiDetails →OpenAI releases GPT-6.1 Terra modelopenaiAn event.14 days agoopenaiDetails →GPT-6 Rosalind released for biological researchopenaiAn event.10 days agoopenaiDetails →Also on Sep 8, 2026
Paryushana (Svetambara)Eight days of fasting and reflection, the holiest time of the Jain year, ending on Samvatsari, the day of forgiveness (Michhami Dukkadam). Bhadrapada,...2 mo agoWikipedia, computedDetails →300th anniversary: J. S. Bach led the first performance of Geist und Seele wird verwirret, a solo...In 1726, J. S. Bach led the first performance of Geist und Seele wird verwirret, a solo cantata for alto voice.2 mo agoWikipediaDetails →International Literacy DayA United Nations international day.2 mo agoUnited NationsDetails →Minneapolis Public Schools first day 2026-27MinneapolisFirst day of school for grades 1 to 12; pre-K and kindergarten start Sept. 10.2 mo agoMinneapolis Public SchoolsDetails →Saint Paul Public Schools first day 2026-27Saint PaulFirst day of school for grades 1 to 12; pre-K and kindergarten start Sept. 10.2 mo agoSaint Paul Public SchoolsDetails →
Source, method and history
- Source
- openai
- How we know
- From the Releases API (releases.fru.dev), which reads each vendor's changelog.
- Who
- openai
- Recurs
- one-off
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- Changes
- 2026-09-25: added to 2026-09-08