OpenAI DevDay
OpenAI · 2 keynotes · 2023, 2025 · mostly Agents and Models · 12 announcements
Year by year
Key themes and the top highlight of each edition| Year | Keynote | Key themes | Top highlight |
|---|---|---|---|
| 2025 | Sam AltmanOct 6, 2025 · 53m · videoAgents, AI coding, ModelsDevDay 2025 was held October 6, 2025 at Fort Mason in San Francisco. | Agents, AI coding, Models | DevDay 2025 was held October 6, 2025 at Fort Mason in San Francisco. |
| 2023 | Sam AltmanNov 6, 2023 · 46m · videoModels, Agents, PricingGPT-4 Turbo supports up to 128,000 tokens of context, 16 times GPT-4's 8K, with knowledge updated to April 2023 | Models, Agents, Pricing | GPT-4 Turbo supports up to 128,000 tokens of context, 16 times GPT-4's 8K, with knowledge updated to April 2023 |
Announcements
12 announcements
| Announcement | Status | |
|---|---|---|
| Apps SDKOpen standard, built on MCP, for building apps inside ChatGPTDevDay 2025 | Preview | DevDay 2025 |
| Apps in ChatGPTFirst-party apps from Booking.com, Canva, Coursera, Figma, Expedia, Spotify, ZillowDevDay 2025 | Announced | DevDay 2025 |
| AgentKitAgent Builder, Connector Registry and ChatKit for building agentsDevDay 2025 | Announced | DevDay 2025 |
| CodexGeneral availability with Slack integration and Codex SDKDevDay 2025 | GA | DevDay 2025 |
| Codex SDKEmbed the Codex CLI agent into custom workflows, TypeScript firstDevDay 2025 | Announced | DevDay 2025 |
| GPT-4 Turbo128K context, lower price, April 2023 knowledgeDevDay 2023 | Preview | DevDay 2023 |
| Price cut for GPT-4 Turbo3x cheaper prompt tokens than GPT-4DevDay 2023 | GA | DevDay 2023 |
| Copyright ShieldOpenAI defends customers against copyright claimsDevDay 2023 | GA | DevDay 2023 |
| Whisper v3Open-source speech recognition modelDevDay 2023 | GA | DevDay 2023 |
| Custom Models programOpenAI researchers train custom GPT-4 for companiesDevDay 2023 | Announced | DevDay 2023 |
| GPTsCustom ChatGPT versions, GPT Store later in NovemberDevDay 2023 | GA | DevDay 2023 |
| Assistants APIThreads, retrieval, Code Interpreter, function callingDevDay 2023 | Preview | DevDay 2023 |
About and year over year
Sources: official keynote videos, their captions and the hosts' recaps, summarized by AI; watch the source for exact wording. Logos via logo.dev; trademarks belong to their owners.