# Meta Muse Wonder for vibe coding (and where to host the app) > Source: > Published: 2026-10-12 11:00:00+00:00 [Blog](https://oncroft.net/blog/) · October 13, 2026 · Rich Chetwynd # Meta Muse Wonder for vibe coding (and where to host the app) Meta announced Muse Wonder with strong reported scores on long-horizon coding and agent workflows. Claude Opus 5.5 still leads some coding benches. After you build with any model, Croft is where your team runs the app. ## Quick answer **Meta announced Muse Wonder** today: two models, Muse Wonder and Muse Wonder Full, aimed at personal and professional agents. On **Meta’s reported table** (max settings), Muse Wonder Full leads several long-horizon coding and agent-workflow benches — DeepSWE 1.1 at **79.0**, SWE-Marathon at **57.5** (xhigh), AutomationBench-AA at **45.4**. **Claude Opus 5.5** still leads Terminal-Bench 4.0-AA (**59.6**), ProgramBench (** 70.5**), and the overall Artificial Analysis Index (** 58**). Those figures are **Meta’s reported results**, not an independent league table. For teams and developers [vibe coding](https://oncroft.net/vibe-coding/) an app, the practical split is: pick the model that fits the job; then put the app somewhere private the team can actually run. ## What Meta announced From Meta’s [Muse Wonder research post](https://research.meta.ai/blog/muse-wonder): - Two models: **Muse Wonder** and**Muse Wonder Full** - **Active Memory** (carry relevant context across conversations) and**Active Focus** (keep working a hard goal, try other approaches, check in before important actions) - Domain work Meta highlights: law, finance, and health, plus frontier coding - **Muse Wonder** is available today through the**Meta Model API** and**Muse Code** - **Muse Wonder Full** is available today for**Muse Code subscribers** - Meta says Muse Wonder **will soon power experiences in Muse** , rolling out first to subscribers, and will power**artifact generation** Meta did not publish pricing, a general consumer rollout date, or a Vibe Code Bench score in that post. ## What Meta’s numbers mean for vibe coding Vibe coding is describing an app and steering until it works. Long-horizon coding benches are a useful proxy for that: the model has to keep requirements in mind, change a codebase, test, and recover. Agent and workflow benches matter if the app has to do a job, not just render a screen. On **Meta’s comparison table** (Muse Wonder Full max, Muse Wonder max, Claude Fable 5.1 max, GPT-6 Astra max, Claude Opus 5.5 max): **Where Meta reports Muse Wonder Full ahead** - **DeepSWE 1.1** (long-horizon coding):**79.0** vs Opus 5.5 at 74.2, Astra at 74.1, Fable 5.1 at 67.4. Muse Wonder (the smaller of the two) is**78.8** . - **SWE-Marathon** (ultra-long-horizon engineering):**57.5** (xhigh) vs Opus 5.5 at 46.3. Muse Wonder is**53.1** . - **AutomationBench-AA** (end-to-end business workflows):**45.4** vs Astra 41.6 and Opus 5.5 at 41.2. - **Harvey LAB-AA** (legal agent work):**13.1** vs Opus 5.5 at 4.2. - **MemoryBench** (remembering context): Muse Wonder**85.6** , Muse Wonder Full**85.5** , vs Opus 5.5 at 81.5. **Where Meta’s table still has Claude Opus 5.5 ahead** - **Terminal-Bench 4.0-AA** (agentic terminal coding):**59.6** vs Muse Wonder Full at 57.1. GPT-6 Astra is 59.1. - **ProgramBench** (from-scratch programming):**70.5** vs Muse Wonder Full at 59.0 — a wide gap on this bench. - **Artificial Analysis Index** (overall):**58** vs Muse Wonder Full at**56** . - **HealthBench Pro** :**65.6** (Astra 65.3) vs Muse Wonder Full at 62.3. - **OSWorld V2.1** (partial):**81.8** vs Muse Wonder Full at 78.4. A compact slice of the coding and overall scores Meta reported: | Benchmark | Muse Wonder Full | Claude Opus 5.5 | Lead on Meta’s table | |---|---|---|---| | DeepSWE 1.1 | 79.0 | 74.2 | Muse Wonder Full | | SWE-Marathon | 57.5 | 46.3 | Muse Wonder Full | | AutomationBench-AA | 45.4 | 41.2 | Muse Wonder Full | | Terminal-Bench 4.0-AA | 57.1 | 59.6 | Claude Opus 5.5 | | ProgramBench | 59.0 | 70.5 | Claude Opus 5.5 | | Artificial Analysis Index | 56 | 58 | Claude Opus 5.5 | Honest read for a team building apps with AI: **Muse Wonder looks strong when the work runs long** — multi-step coding, business workflows, keeping context. **Opus 5.5 still wins some of the coding suites that look more like from-scratch programs and terminal agents**, and it leads Meta’s overall index. GPT-6 Astra and Claude Fable 5.1 sit in the mix on the same table. Treat this as **Meta’s snapshot on launch day**. Public app-building leaderboards (see [best models for vibe coding](https://oncroft.net/best-models-for-vibe-coding/)) measure something different, and they move. ## After you build, you still need a host Whichever model writes the app — Muse Wonder, Claude, GPT, Cursor, Grok — a chat preview is not a place your team can work. You still need: - A **private server** that stays up - **Company login** , so only your people get in - A **database** everyone shares - **Schedules** for jobs that should run without someone clicking - **Monitoring** , so a bad deploy is visible - **Backups and rollback** when a prompt breaks something That is hosting. It is also where most vibe-coded prototypes die. ## Croft is the place the team runs it Croft does not sell models and does not pick a vendor. **Croft is an MCP server**, so it works with **any MCP-capable assistant**. Meta’s post does not describe a Muse-specific Croft integration; use the client you already have. The loop is the same: 1. Describe the app in your assistant (or in [Ask Croft](https://oncroft.net/build/) in the browser). 2. Deploy to your croft. 3. Invite the team. They sign in once. You get a live URL on **your own private server**, behind **one company login**, with a **database**, **schedules**, and **monitoring** included. Connect setup: [Claude](https://oncroft.net/connect/claude/), [ChatGPT](https://oncroft.net/connect/chatgpt/), [Cursor](https://oncroft.net/connect/cursor/), [Grok](https://oncroft.net/connect/grok/), or [any MCP client](https://oncroft.net/connect/). ## Related - [Best models for vibe coding](https://oncroft.net/best-models-for-vibe-coding/) — public benches, assistants, and how to choose - [Vibe coding hosting](https://oncroft.net/vibe-coding/) — where the app lives after the chat window - [AI app hosting](https://oncroft.net/ai-app-hosting/) — private hosting for apps you build with AI - [Connect your AI assistant](https://oncroft.net/connect/) — MCP setup - [Google Gemini 4 Argon for vibe coding](https://oncroft.net/blog/google-gemini-4-argon-vibe-coding/) — the last frontier-model drop, same hosting gap ## FAQ ### What is Muse Wonder? Meta’s new frontier series, launched 13 October 2026 (NZ): **Muse Wonder** and **Muse Wonder Full**. Meta says they target personal and professional agent work, with Active Memory and Active Focus. Availability in Meta’s post: Meta Model API and Muse Code today; Full for Muse Code subscribers; Muse product rollout coming, subscribers first. ### Is Muse Wonder the best model for vibe coding? On Meta’s table it is the one to watch for **long-horizon coding** and **agent/business workflows**. Opus 5.5 still leads **Terminal-Bench**, **ProgramBench**, and the **Artificial Analysis Index**. Use the model that matches the job; rankings will move. ### Can I connect Muse Wonder to Croft? Croft works with **any MCP-capable assistant**. Meta did not publish a Croft (or MCP) setup in the announcement. Point your MCP client at Croft, build, deploy. ### Where should a team host an app built with Muse Wonder? On a private host with company login and a database. That is Croft. Public preview URLs are for demos, not internal tools. ### How much does Croft cost? Solo from $24/month on annual billing, Team $99/month on annual. 7-day free trial, no card to start. [Pricing →](https://oncroft.net/pricing/) ## Where to learn more - **Meta research post:**[Muse Wonder](https://research.meta.ai/blog/muse-wonder) - **Croft:**[Get your croft](https://app.oncroft.net/signup) — 7-day free trial, Solo from $24/mo annual ## Stake out your croft. Your team's first app could be live before lunch. [Start free trial](https://app.oncroft.net/signup) 7 days free, no card to start. From $24/month - cancel anytime and take everything with you.