Muse Spark

To help more developers build with Muse Spark 1.3 at our contributor tier pricing, we're rolling out optimizations. In our testing, it have 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.

Muse Spark 2 Leak: Zuck Is Already Building The Next One 🥑 >Meta confirmed the next-gen Muse model is already in development >Rumored to be able to compete with GPT-6 Astra and Fable 5 >Reportedly bumping context window to 2M tokens Heavier focus on agentic workflows and computer use >Reportedly very inexpensive to run No official name, benchmarks, or release window confirmed yet Meta previously admitted Muse Spark 1 couldn't keep up with rivals this would be the answer to that

Well, not quite frontier, but at least around Muse Spark 1.3 Pretty sensible results for a 40-layer 8/16B active

@j_dekoninck

We just added DeepSeek-v4.1-Flash on MathArena! Not quite on the level of Qwen-3.8, but boy is it cheap.

i actually didn't realize this until seeing this post, but muse spark 1.3 ranks as #2 on Agents Last Exam (ALE)!

@yashvarpatel

Muse Spark 1.3 ranks #2 on Agents' Last Exam (ALE) leaderboard, ranked #1 at the time of its release. > Kudos to the team! Somehow this didn't get enough buzz. > Leaderboard:

• agents-last-exam.org

Meta doesn't even need to be frontier to win! They have such massive distribution that just having close and cheaper is a massive alpha

@Mr_Salio

🚨 Muse Spark 2 Leaks: Beats Astra > Spark 2 could compete with GPT-6 Astra and Fable 5.1 > Meta is already developing the next-gen Muse model > Expected to be extremely cheap to run > A 1M-token context could carry over > Meta admitted Spark 1 struggled against the competition > Spark 2 could be Meta's answer > Expected late this month or next month > Could Meta finally have a serious frontier model?

🚨 Muse Spark 2 Leaks: Beats Astra > Spark 2 could compete with GPT-6 Astra and Fable 5.1 > Meta is already developing the next-gen Muse model > Expected to be extremely cheap to run > A 1M-token context could carry over > Meta admitted Spark 1 struggled against the competition > Spark 2 could be Meta's answer > Expected late this month or next month Could Meta finally have a serious frontier model?

Last week these models went live in Command Code. DeepSeek V4.1 Flash Muse Spark 1.3 (with max reasoning) Ling 3.0 Flash Sante (free model) 🐐

something people may have missed: we have been building our models (muse spark 1 through 1.3) specifically to be exceptional for muse over many months. in each of our releases, we made big gains on agentic and multimodal capability. each of these steps were secretly to set the stage for our personal agent, @Muse. (they’re named the same thing for a reason… we planned ahead!) when we started MSL last year, the goal was always to develop personal superintelligence. that always meant giving AI superpowers to everyone in the world, and the personal agent is the perfect manifestation of that. building great models takes time, and it takes an enormous amount of planning and foresight to develop unique capabilities into these models. it often requires months of careful research and work across infra and data to build excellent models. it is very sweet to see the culmination of over a year of hard work come together into a product that people are loving. we are so glad that people are enjoying muse, and we can’t

wow Wang wasn't kidding, Muse Spark isn't benchmaxxed at all…

@Lonely__MH

🎉传说中的 Muse Spark 1.3 总算是体验上了 > 老规矩，「鹈鹕骑自行车」安排上 > 额，只能说凑合吧（注意左上角😂😂），夸的有点太狠了 > 回头再试试别的能力😅

Here’s a list of all AI models launched this month already: * Claude Fable 5.1 * Claude Mythos 5.1 * Gemini 3.8 Flash * Gemini 3.8 Flash Cyber * Muse Spark 1.3 * Qwen3.8-Max-0902 * GPT-6 Astra * GPT-6 Astra Pro * Ling-3.0-flash-VL * Ling-3.0-flash-Sante * Lyria 3.5 * ChatGPT Images 2.5 * GPT-Image-2.5 Flare * GPT-Image-2.5 Sunburst * DeepSeek-V4.1-Flash * Fugu Max * Fugu Ultra v2 We’re not even half way through the month…