Building the @aiSDK.

Joined January 2008
8 Photos and videos
Pinned Tweet
26 Aug 2025
πŸ“’ I'm really excited to share that I'm back to working on Open Source, an SDK no less! And not any SDK, but @aiSDK! Thank you @vercel for letting me πŸ–€ I'll be using Twitter exclusively for work.
8
1
96
8,003
Jun 13
Learn from the best
My opinion on the news? There's still tickets available for my Codex Power User workshop
1
248
Jun 12
AI SDK your favorite harness! We are eager to see y'all give it a try!
AI SDK now supports agent harnesses like Claude Code, Codex, and Pi with sandboxed sessions and AI SDK-compatible streams: πšŒπš˜πš—πšœπš πšŠπšπšŽπš—πš = πš—πšŽπš  π™·πšŠπš›πš—πšŽπšœπšœπ™°πšπšŽπš—πš({ πš‘πšŠπš›πš—πšŽπšœπšœ: πšŒπš•πšŠπšžπšπšŽπ™²πš˜πšπšŽ, πšœπšŠπš—πšπš‹πš˜πš‘: πšŒπš›πšŽπšŠπšπšŽπš…πšŽπš›πšŒπšŽπš•πš‚πšŠπš—πšπš‹πš˜πš‘(), }); Available in canary: πš—πš™πš– πš’ πšŠπš’@πšŒπšŠπš—πšŠπš›πš’. We welcome your feedback as we bring agent harness portability to the ecosystem, with excellent DX. vercel.com/changelog/program…
11
3,542
Gregor retweeted
Jun 11
Prevent your agent from going rogue. A policy gives your agent runtime guardrails for AI SDK tool calls. Create policies as code via Open Policy Agent.
6
5
48
3,235
Gregor retweeted
Claude Fable 5 is now on AI Gateway. A Mythos-class model for your hardest unsolved problems. πš–πš˜πšπšŽπš•: 'πšŠπš—πšπš‘πš›πš˜πš™πš’πšŒ/πšŒπš•πšŠπšžπšπšŽ-πšπšŠπš‹πš•πšŽ-𝟻' vercel.com/changelog/claude-…
Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use. Its capabilities exceed those of any model we’ve ever made generally available.
3
12
72
6,044
Gregor retweeted
Jun 9
Use Claude Fable 5 with the AI SDK.
Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use. Its capabilities exceed those of any model we’ve ever made generally available.
2
6
52
5,638
Gregor retweeted
Step performance stats in AI SDK 7. Added time between output chunks as well.
Jun 5
AI SDK 7 canary calculates step performance statistics: - step time - llm response time - time to first output - tool execution times - tokens per second (several variants) - time between output chunks
1
3
34
3,138
Gregor retweeted
Jun 4
AI SDK 7 canary has a top-level reasoning parameter. Configure reasoning effort without using provider options:
6
7
63
9,363
May 29
because why not
Run Docker inside Vercel Sandbox. β–ͺ︎ Build and run containers in full isolation β–ͺ︎ Persist installs and images across sessions β–ͺ︎ Run databases, test suites, or full apps vercel.com/changelog/run-doc…
1
2
401
Gregor retweeted
May 28
Use Claude Opus 4.8 with the AI SDK.
May 28
Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors. Available today at the same price.
5
17
3,374
Gregor retweeted
experimenting with subagents for ai sdk, would love feedback
19
7
85
12,083
Gregor retweeted
Added step performance stats to AI SDK 7 canary: - step time - llm response time - time to first token - tool execution times - tokens per second (several variants)
4
9
103
6,607
Gregor retweeted
You can now use 100s of AI models from 40 providers in WordPress, with one API key. WordPress 7.0 just launched with its built-in AI Client, and the AI Gateway connector plugin gives your plugins access to whichever models they work best with.
The AI Gateway plugin for WordPress is here. Install it and any plugin using the WordPress AI Client can call text, image, and video models with one API key. vercel.com/changelog/vercel-…
6
15
53
11,831
Gregor retweeted
i created a llama.cpp provider for vercel ai sdk that runs directly in the Node process (no separate server required, it uses llama.cpp bindings) the llama.cpp provider supports reasoning, tool calling, image inputs, prompt caching (for a single conversation)
4
7
74
4,583
Gregor retweeted
May 14
AI SDK 7 canary has a new telemetry system. Register telemetry once, then all AI SDK calls emit telemetry by default.
4
8
151
30,874
Gregor retweeted
okay i'm getting excited about local ai again
5
2
53
3,844
May 12
If you build using @aisdk, adding a TUI is as simple as 2 lines of code. Check out Lars agent-tui package, go build your own and share it with us!
built a basic tui for ai sdk 7 agents
1
7
1,226
Gregor retweeted
ai sdk 7 canary: typed tool context tools can define and use a typed context that is separate from the llm generated input (e.g. for api keys)
3
4
77
4,827
Gregor retweeted
You can now use the Google Interactions API in @aisdk. The Interactions API is Google's new standard primitive for building with Gemini, with statefulness, observable execution, and access to new models and capabilities. Use @πšŠπš’-πšœπšπš”/πšπš˜πš˜πšπš•πšŽ@𝟹.𝟢.𝟼𝟾 or greater.
1
3
7
911
May 7
we would love to hear feedback on our new context APIs for runtime and tools!
May 7
Replying to @aisdk
When that tool is used by an agent, TypeScript makes sure the necessary tool context is provided.
3
1
13
1,822