As of: 2026-10-12 22:30 CEST.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz.
Canonical page: https://postcutoff.com/m/muse-wonder-full/

# Muse Wonder Full

Meta, Muse family. Status: preview. Type: reasoning model. Released: 2026-10-12. Training cutoff: not published.

## How to call it

| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Muse Code (Power Usage and Maximum Usage plans only) | `muse-wonder-full-1.0` |  | https://dev.meta.ai/docs/models https://dev.meta.ai/products/muse-code |

## Pricing

- Price not published.
- Last checked: 2026-10-12

## Specs

- Input: text, image, video, audio, pdf
- Output: text
- Context window: 1,048,576 tokens
- Max output: not published
- Open weights: no
- Licence: proprietary

## What it has not seen

- No published training cutoff. Counted from its release (2026-10-12): at least 0 AI events since (0 major, 0 historic), as of 2026-10-12.
- Everything since September 2026: https://postcutoff.com/since/2026-09/

## What stands out

- Long-horizon coding: DeepSWE 1.1 79.0 (Datacurve) and SWE-Marathon 57.5 at xhigh (Abundant AI), the top scores in Meta's table; Artificial Analysis Coding Agents Index 68 in Muse Code, level with Claude Code with Sonnet 5.5. Source: https://research.meta.ai/static/muse-wonder-model-card
- Legal, finance and business-workflow agents: Harvey LAB-AA 13.1, Vals Finance Agent V2 59.1 and AutomationBench-AA 45.4, each ahead of Claude Fable 5.1, GPT-6 Astra and Claude Opus 5.5 in Meta's table. Source: https://research.meta.ai/blog/muse-wonder
- Active Memory and Active Focus: Cross-conversation memory (MemoryBench 85.5, internal) and persistence on blocked tasks, shared with Muse Wonder. Source: https://research.meta.ai/blog/muse-wonder

## Notes

Not on the Meta Model API and no per-token price; available only with a Muse Code subscription ($50 Power Usage, $200 Maximum Usage per CNBC and Engadget). A separate model, not a reasoning level of Muse Wonder. Artificial Analysis Intelligence Index v4.3: 56 at max (Opus 5.5: 58; Fable 5.1 and GPT-6 Astra: 53); Vals Index #5. Model card: unmitigated model may reach Meta's 'high risk' threshold for chemical and biological misuse; mitigations applied. Knowledge cutoff and max output not published.

The larger of Meta's two frontier models released Oct 12, 2026. There is no API access; use it through Muse Code.

Sources: https://dev.meta.ai/docs/models , https://dev.meta.ai/models/muse-wonder/ , https://research.meta.ai/static/muse-wonder-model-card , https://x.com/artificialanlys/status/2109697083519447118

Model page: https://postcutoff.com/m/muse-wonder-full/