Monthly signal
The standout launches, model drops, and platform moves worth tracking.
AI releases in December 2025
In December 2025, we tracked 34 releases from 12 companies. That is up 1 from November 2025 (33). OpenAI shipped the most (9), then Google Gemini (8) and Mistral AI (3).
Releases
34
November 2025: 33
Companies shipping
12
November 2025: 11
Most shipped
Model
13 releases
Key launches in December 2025
- Model
OpenAI
GPT Image 1.5 in the Responses image generation tool
Added gpt-image-1.5 and chatgpt-image-latest to the Responses API image generation tool.
- Model
Google Gemini
FunctionGemma: New Gemma model for function calling
Specialized version of Gemma 3 270M model fine-tuned for function calling, designed for edge deployment and customization with support for local execution and API actions.
- Model
OpenAI
GPT-5.2-Codex
Introducing GPT-5.2-Codex, the most advanced agentic coding model for complex software engineering tasks with improvements in context compaction, large code changes, and cybersecurity.
- Model
Google Gemini
Gemini 3 Flash: Frontier intelligence built for speed
Introducing Gemini 3 Flash, a fast and cost-effective AI model with frontier intelligence built for speed. Available via Gemini app, Search, and various developer platforms. Offers Pro-grade reasoning at Flash-level efficiency with lower costs.
- Model
Mistral AI
Mistral Small Creative Release
Mistral Small Creative is a Labs model released as a creative variant.
- Model
Mistral AI
Mistral Large 3 and Ministral 3 Release
Mistral Large 3 and Ministral 3 models released with new variants.
- Product
Manus
Manus Projects Connectors Launch
Introduces Connectors to integrate with apps like My Browser, Gmail, Google Calendar, and Notion, enabling automated workflows and contextual task execution.
- Product
Cursor
Enterprise: Conversation Insights, Billing Groups and Service Accounts
Enterprise features including Conversation Insights, Shared Agent Transcripts, Billing Groups, Linux Sandboxing, and Service Accounts for Cursor. Service accounts roll out to Enterprise accounts starting 12/22.
Who shipped most
Releases per company in December 2025. Each name opens that company's December 2025 changelog.
Through the month
Releases by day of the month, across every company. A longer bar is a busier stretch.
- Days 1–710
- Days 8–148
- Days 15–2114
- Days 22–281
- Days 29–311
By category
- Model13
- Product10
- Developer Tools8
- API3
Every AI release in December 2025
Grouped by company, busiest first, with each company's latest releases. Titles open the entry on the company's month page; source links go to the official announcement.
- GPT Image 1.5 in the Responses image generation toolOpenAI API Changelog
- Agent skills in CodexCodex Changelog
- GPT-5.2-CodexCodex Changelog
- GPT Image 1.5 and chatgpt-image-latestOpenAI API Changelog
- New dated audio snapshots for realtime, audio and TTSOpenAI API Changelog
- GPT-5.2OpenAI API Changelog
- Client-side compaction (/responses/compact)OpenAI API Changelog
- GPT-5.1-Codex-Max in the APIOpenAI API Changelog
- FunctionGemma: New Gemma model for function callingGoogle Blog
- Gemini 3 Flash: Frontier intelligence built for speedGoogle Blog
- GenTabs with Gemini 3Google Blog
- Gemini 2.5 Text-to-Speech model updatesGoogle Blog
- Pixel Watch 4 AI Gesture and Smart Reply UpdatesGoogle Blog
- The Android Show: New features for Galaxy XR and a look at future devicesGoogle Blog
- Gemini 3 Pro: the frontier of vision AIGoogle Blog
- Ads Advisor and Analytics Advisor LaunchGoogle Blog
2 more companies · 2 releases
December 2025 AI releases FAQ
What AI models were released in December 2025?
Model releases we tracked in December 2025 include FunctionGemma: New Gemma model for function calling from Google Gemini (December 18, 2025), Mistral Small Creative Release from Mistral AI (December 16, 2025), New dated audio snapshots for realtime, audio and TTS from OpenAI (December 15, 2025) and Mistral Large 3 and Ministral 3 Release from Mistral AI (December 2, 2025). Each one is listed below with a link to the official announcement.
Which AI company shipped the most in December 2025?
OpenAI shipped the most, with 9 releases, mostly Model. Google Gemini was next with 8.
How many AI releases were there in December 2025?
We tracked 34 releases from 12 companies in December 2025. A release is one announced change, so a major model launch and a small fix each count once.
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