Monthly signal
The standout launches, model drops, and platform moves worth tracking.
AI releases in May 2026
In May 2026, we tracked 74 releases from 14 companies. That is down 6 from April 2026 (80). OpenAI shipped the most (15), then Cursor (13) and Anthropic (12).
Releases
74
April 2026: 80
Companies shipping
14
April 2026: 14
Most shipped
Product
22 releases
Key launches in May 2026
- Model
xAI
Grok Build 0.1
SpaceXSI's coding model, trained specifically for agentic coding workflows. Currently in early access. The model slug is grok-build-0.1.
- Model
Anthropic
Claude Opus 4.8 launch
Claude Opus 4.8 upgrade with improvements in coding, agentic skills, and practical knowledge work
- Model
Mistral AI
Codestral Embed Release
Released Codestral Embed (codestral-embed).
- Model
Mistral AI
Mistral OCR 2 and Annotations Release
Released Mistral OCR 2 (mistral-ocr-2505) and annotations.
- Model
xAI
Grok Build 0.1
SpaceXAI's coding model, trained specifically for agentic coding workflows. Currently in early access. The model slug is grok-build-0.1 .
- Model
Cursor
Composer 2.5
Composer 2.5 improves intelligence and behavior for long tasks, with new pricing and usage incentives.
- Model
OpenAI
GPT-Realtime-2, Realtime-Translate and Realtime-Whisper
Released GPT-Realtime-2, a new realtime voice model with configurable reasoning for speech-to-speech agents, along with GPT-Realtime-Translate for streaming speech translation and GPT-Realtime-Whisper for streaming speech-to-text.
- Product
Cursor
Auto-review
Auto-review is a new run mode that allows Cursor to work for longer with fewer approval prompts and safer execution.
Who shipped most
Releases per company in May 2026. Each name opens that company's May 2026 changelog.
Through the month
Releases by day of the month, across every company. A longer bar is a busier stretch.
- Days 1–717
- Days 8–1415
- Days 15–2121
- Days 22–2813
- Days 29–318
By category
- Product22
- Developer Tools19
- API10
- Model10
- Enterprise & Security7
- Infrastructure4
Every AI release in May 2026
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.
- Prompt cache retention defaults to 24hOpenAI API Changelog
- Computer use and mobile access on Windows 26.527Codex Changelog
- Workload identity federationOpenAI API Changelog
- Admin API capabilities expansionOpenAI API Changelog
- Appshots and goal mode (26.519)Codex Changelog
- Secure MCP TunnelOpenAI API Changelog
- Multiple IP allowlistsOpenAI API Changelog
- Work with Codex from anywhereCodex Changelog
- Auto-reviewCursor Changelog
- Shared CanvasesCursor Changelog
- Improvements to Cursor AutomationsCursor Changelog
- Cursor in JiraCursor Changelog
- Composer 2.5Cursor Changelog
- Development environments for agentsCursor Changelog
- Agents Window ImprovementsCursor Changelog
- Cursor in Microsoft TeamsCursor Changelog
- Claude Managed Agents on Claude Platform on AWSClaude Platform Release Notes
- Claude Opus 4.8 launchClaude Help Center Release Notes
- Thinking token breakdown in Messages API usageClaude Platform Release Notes
- Enterprise plans can manage connector access with custom rolesClaude Help Center Release Notes
- Claude now works with more security and compliance toolsClaude Help Center Release Notes
- MCP Tunnels and Self-Hosted Sandboxes for Managed AgentsClaude Platform Release Notes
- Enhanced Web Search Tool for SEC FilingsClaude Platform Release Notes
- Cache Diagnostics Beta LaunchClaude Platform Release Notes
4 more companies · 4 releases
May 2026 AI releases FAQ
What AI models were released in May 2026?
Model releases we tracked in May 2026 include Claude Opus 4.8 launch from Anthropic (May 28, 2026), Codestral Embed Release from Mistral AI (May 25, 2026), Mistral OCR 2 and Annotations Release from Mistral AI (May 22, 2026), Devstral Small 2507 Release from Mistral AI (May 21, 2026) and Mistral Medium 3 Release from Mistral AI (May 7, 2026). Each one is listed below with a link to the official announcement.
Which AI company shipped the most in May 2026?
OpenAI shipped the most, with 15 releases, mostly Developer Tools. Cursor was next with 13.
How many AI releases were there in May 2026?
We tracked 74 releases from 14 companies in May 2026. A release is one announced change, so a major model launch and a small fix each count once.
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