Build the future and scale with us by leveraging advanced tools and technologies, from AI to MR.

Menlo Park, CA
Joined August 2009
Meta for Developers retweeted
Muse Spark Open is built to plan, act, and use computer across agentic tasks for life and work. You can now build a powerful personal AI agent with an open stack, and SGLang to make it: - Ultra-responsive with NVFP4 MegaMoE and sequence parallelism - Faster for agentic and coding tasks with our DFlash2 draft model - Customizable for specialized use cases via fine-tuning with Miles We’re incredibly proud to have made this possible with @AIatMeta, @NVIDIAAI, @AIatAMD, @intel, and @radixark!
AI at Meta
@AIatMetaOct 15
Today we’re releasing Muse Spark Open, the most capable US open-weight model to date. Built for coding and agentic work, it excels at long-horizon tasks, complex software engineering, and multi-step reasoning. Key Model Specs: → 816B total / 42B active parameters → 1M token context window → Natively multimodal across text, image, video, audio
4
21
9
74
285,431
Meta for Developers retweeted
muse spark open. why 2026 won't be like 1984 
197
267
99
5,138
728,923
Meta for Developers retweeted
Muse Spark Open -- weights releasing today -- runs great on new Mac Studios thanks to work with @johnternus and Apple.
1,297
1,707
871
31,658
4,547,572
Meta for Developers retweeted
Meta adding a frontier model paired with filling out their API catalogue tells me the are going to be a first-tier AI provider. I think people have been sleeping on Meta.
1
2
12
2,962
Meta for Developers retweeted
Meta's gone full-tilt, and I'm glad to see another competitor with a full AI catalog of services. I've been running a heavy amount of AI experiments using Meta, and its was already passing my "good enough", and a fraction of the price. I'll have give Muse Wonder a go with some single shots today.
Introducing Muse Wonder, our new family of frontier models with state of the art performance for personal and professional agentic work.
3
7
2,591
Meta for Developers retweeted
MUSE WONDER 🍉 muse wonder is the best model in the world for personal agents and professional agents. we evaluated our model against the best models in the world across agentic and coding tasks, and we think you all will like it.
213
264
123
3,581
203,238
Meta for Developers retweeted
Introducing Muse Wonder, our new family of frontier models with state of the art performance for personal and professional agentic work.
2,365
3,077
2,835
38,846
5,955,268
Meta for Developers retweeted
Game time. Replit apps are now available in Meta VR.
20
9
8
78
28,473
Meta for Developers retweeted
Curious about building for Meta VR Glasses? 🥽 Join us live with @MetaHorizonDevs to explore what Meta VR Glasses means for creators, see live Unity demos of its capabilities, and learn what Day One support from Unity means. 📅 October 1 | 9am PT / 12pm ET / 5pm GMT 🔗 Set your reminder: on.unity.com/MetaVRGlasses_L…
2
14
3
117
21,604
Meta for Developers retweeted
Muse Spark 1.3 is now available in Box AI. What our evaluation of Muse Spark 1.3 found: → 13% accuracy lead over comparably priced models on the Box Complex Work Eval → 42% faster than Muse Spark 1.2 using roughly a third fewer tokens → Strongest gains in Financial Services, Technology, and Energy
8
6
1
41
385,028
Meta for Developers retweeted
We’re excited to partner with Meta to deliver day-one support for Meta VR Glasses 🤝 Add hands support to your Quest title or build something new. With Unity, it's one codebase that can be used across multiple devices, enabling developers to reach more VR players on more platforms with less friction. Download or upgrade to Unity 6.6 or higher to start creating today. @MetaHorizonDevs
9
53
18
343
75,449
Meta for Developers retweeted
We're helping devs move faster with greater choice over what they build, where they deploy, and how they scale. Excited to bring @AIatMeta frontier agentic and coding intelligence to the community with Muse Spark 1.3 on @Oracle and @googlecloud 🚀
1
1
5
805
Meta for Developers retweeted
Muse Spark 1.3 from Meta Superintelligence Labs, the latest frontier model, is now on Gemini Enterprise. Learn how to deploy Muse Spark 1.3 from Meta on Google Cloud’s secure infrastructure today → goo.gle/4h7pPvW
5
26
6
198
17,261
Meta for Developers retweeted
Muse Code is now an import away. muse-code-sdk is an asyncio-first Python client for Muse Code sessions: spawn or attach, stream a turn, handle tool approvals, resume later. pip install muse-code-sdk pypi.org/project/muse-code-s…
3
6
2
27
6,870
Meta for Developers retweeted
To help more developers build with Muse Spark 1.3 at our contributor tier pricing, we're rolling out optimizations. In our testing, it has a 1-2% variance on our aggregate benchmarks compared to the standard tier. We've been using it for a while and noticed no differences in capability in our own usage. The reception for Muse Spark 1.3 has been great - keep building and share feedback! We're eager to keep improving performance and capability.
14
7
1
143
9,846
Meta for Developers retweeted
One of the biggest requests has been Muse Code for Windows Today, we're excited to share that Muse Code is now native on Windows (no more WSL!) 🎉 Try it: irm dev.meta.ai/install.ps1 | iex
Muse Code from Meta is now available natively on Windows - no WSL required. It’s PowerShell-fluent, sandboxed by default, native x64 and ARM64, and supports zero-admin install. Coming soon: intersession messaging. Get started: irm dev.meta.ai/install.ps1 | iex Learn more: bit.ly/3UZJhlA
14
20
2
180
10,440
Meta for Developers retweeted
Last night, I built a VR game prototype in a few hours with Muse Code on PC. It was already available on macOS and Linux, and today we’re bringing it to PC! 🔥 I tested it with Unity through the Unity CLI, and here are a few things that worked really well for me: - Having Muse Code on PC alongside Link, which is only supported on Windows, makes testing in the headset so much faster. - I built one feature at a time, just like I do with other agents: a Unity project ready for MR/VR, then the core mechanic, the game loop, and finally the environment. - I added rules to AGENTS md to prioritize Meta VR CLI for context. This worked really well for implementing the hand tracking punch mechanic and power up. - After initially testing in Meta XR Simulator, I found that the shaders needed changes for stereo rendering in VR. Muse Code handled those updates really well. 𝗧𝗼 𝗶𝗻𝘀𝘁𝗮𝗹𝗹 𝗶𝘁, run these commands: irm dev.meta.ai/install.ps1 | iex Give it a try with a VR idea you’ve been wanting to prototype, or a feature in your existing game. Create a branch and give yourself room to experiment! What’s the one VR/MR feature you’d want me to try building next? 👀
3
12
1
56
3,192
Meta for Developers retweeted
🚀 Plugins are now live in Muse Code! Install from a marketplace or local bundle, enable/disable in one step, update + remove with ease, and review runtime capabilities, all from /plugins Extend Muse Code your way 🔌 Install: curl -fsSL dev.meta.ai/install.sh | bash
22
14
7
166
39,747
Meta for Developers retweeted
Max is always best
1/ we just publicly released Muse Spark 1.3 max! we see significantly stronger coding and agentic performance on muse spark 1.3 max, so would strongly recommend trying it out even if you've already tried muse spark 1.3 high or muse spark 1.3 xhigh.
3
7
48
11,835
Meta for Developers retweeted
1/ we just publicly released Muse Spark 1.3 max! we see significantly stronger coding and agentic performance on muse spark 1.3 max, so would strongly recommend trying it out even if you've already tried muse spark 1.3 high or muse spark 1.3 xhigh.
141
166
74
2,010
338,213