Meta/Text & chat/Wednesday, April 8, 2026

Muse Spark

Key facts

Released: Apr 8, 2026
What it does: Text and chat: Writes, answers questions and holds a conversation.

View more

How: For developers, through an API
Announced as: “Introducing Muse Spark: Scaling Towards Personal Superintelligence”

From trckr's archive of releases before it started watching. Date and details from Epoch AI's database of AI models (CC BY 4.0).

How it scores

From independent testers, never the lab's own claims.

Combined test score#49 of 235
1. GPT-6 Astra169
2. 2GPT-6.1 Sol169
3. …
4. 48GLM-5.3-Flash154
5. 49Muse Spark153
6. 50GLM-5.2153
Source: Epoch AI · Epoch Capabilities Index
Chat answers, by people's votes#15 of 86
1. Gemini 4 Carbon1,527
2. 2Gemini 4 Argon1,522
3. …
4. 14Gemini 3.7 Flash1,489
5. 15Muse Spark1,489
6. 16Kimi K31,487
Source: LMArena · LMArena text, adjusted for style

Compare Muse Spark with

It came out 368 days after Llama 4 Scout, the lab's previous model.

The details

Get alerts like this the moment they happen.

From Meta and every other major lab.

Free, no account needed. Push, Telegram, Discord, email or RSS.