Muse Spark 1.1 vs Grok 4.5
Meta Muse Spark 1.1 | SpaceXAI Grok 4.5 | |
|---|---|---|
| Overview | ||
| Company | Meta | SpaceXAI |
| Release date | Jul 9 2026 | Jul 8 2026 |
| Access | Proprietary | Proprietary |
| Benchmarks | ||
Agentic coding SWE-Bench ProCan the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | 61.5% | 64.7%Best |
Multilingual coding SWE-Bench MultilingualLike SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better. | — | 78% |
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. | 53.3% | — |
Agentic coding DeepSWE 1.0Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. Higher is better. | — | 62% |
Next.js coding Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | — | 83% |
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. | 80% | 83.3%Best |
Multi-step tool use MCP AtlasCan the AI chain together many tools and steps to complete one bigger task, rather than doing just a single thing? Higher is better. | 88.1% | — |
Professional tool use JobBenchTests the AI on professional workplace tasks that require using real work tools — the kind of multi-step jobs an office worker handles. Higher is better. | 54.7% | — |
Personal tool use Toolathlon-VerifiedTests how well the AI uses everyday personal tools and apps to get things done — a human-checked version of Toolathlon. Higher is better. | 75.6% | — |
Multidisciplinary reasoning Humanity's Last Exam · with toolsHumanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | 62.1% | — |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | 80.8% | — |
Agentic financial analysis Finance Agent v2Tests the AI on real financial-analysis work, like digging through reports and making sound decisions. Higher is better. | 57.2% | — |
Chart reasoning CharXiv ReasoningCan the AI read and reason about complex charts and figures, not just text? Higher is better. | 88.4% | — |
Visual reasoning BabyVisionTests core visual reasoning — seeing and understanding images the way even young children can, which AIs often find surprisingly hard. Higher is better. | 76.3% | — |
| Timeline | ||
| Release gap | Grok 4.5 shipped 1 days before Muse Spark 1.1 | |
Which is better: Muse Spark 1.1 or Grok 4.5?
Grok 4.5 leads Muse Spark 1.1 on 2 of the 2 benchmarks they both report (SWE-Bench Pro, Terminal-Bench 2.1). Grok 4.5 shipped 1 days before Muse Spark 1.1, 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 SWE-Bench Pro, Grok 4.5 leads at 64.7% vs Muse Spark 1.1 at 61.5%. On Terminal-Bench 2.1, Grok 4.5 leads at 83.3% vs Muse Spark 1.1 at 80%.
Frequently asked questions
Muse Spark 1.1 was released by Meta on Jul 9 2026.
Grok 4.5 was released by SpaceXAI on Jul 8 2026.
Grok 4.5 leads on SWE-Bench Pro — Muse Spark 1.1 61.5% vs Grok 4.5 64.7%.
Other comparisons
Muse Spark 1.1 vs Claude Sonnet 5Grok 4.5 vs Claude Sonnet 5Muse Spark 1.1 vs GPT-5.6 SolGrok 4.5 vs GPT-5.6 SolMuse Spark 1.1 vs Gemini OmniGrok 4.5 vs Gemini OmniMuse Spark 1.1 vs DeepSeek-V4-ProGrok 4.5 vs DeepSeek-V4-ProMuse Spark 1.1 vs Mistral Medium 3.5Grok 4.5 vs Mistral Medium 3.5Muse Spark 1.1 vs Kimi K2.7 CodeGrok 4.5 vs Kimi K2.7 Code