Muse Spark 1.2vsGrok Code Fast 1
Muse Spark 1.2 | Grok Code Fast 1 | |
|---|---|---|
| Specifications | ||
Context window | 1M | — |
| Benchmarks | ||
Agentic coding DeepSWE 1.1Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better. | 59.3% | — |
Agentic terminal coding Terminal-Bench 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | 82.9% | — |
Community preference Arena Elo (Text)Real people chat with two anonymous AIs side by side and vote for the answer they prefer. Votes become a chess-style Elo rating on arena.ai — it measures which AI people actually like, not test scores. Higher is better. | 1498 | — |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | 1544Best | 1163 |
| Overview | ||
| Company | Meta | SpaceXAI |
| Release date | Aug 5 2026 | Aug 28 2025 |
| Access | Proprietary | Proprietary |
Which is better: Muse Spark 1.2 or Grok Code Fast 1?
Muse Spark 1.2 leads Grok Code Fast 1 on 1 of the 1 benchmark they both report (Arena Elo (Code)). Grok Code Fast 1 shipped 342 days before Muse Spark 1.2, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On Arena Elo (Code), Muse Spark 1.2 leads at 1544 vs Grok Code Fast 1 at 1163.
Frequently asked questions
Muse Spark 1.2 was released by Meta on Aug 5 2026.
Grok Code Fast 1 was released by SpaceXAI on Aug 28 2025.
Other comparisons
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