# GPT-5.2 Pro vs Muse Glimmer

> GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 41.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-2-pro-vs-muse-glimmer
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where GPT-5.2 Pro leads 64.8 to 36.1.
- Muse Glimmer has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| Provider | OpenAI | Meta |
| Noometry Index | 52.2 | 41.3 |
| Rank | 34 | 128 |
| Context | 400K | — |
| Input $/M | $21 | — |
| Output $/M | $168 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-5.2 Pro: —
- Muse Glimmer: 38.7 (#157)

| Benchmark | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| LMArena WebDev | — | 1355 |
| LMArena Coding | — | 1417 |

## Reasoning

- GPT-5.2 Pro: 51.8 (#31)
- Muse Glimmer: 27.2 (#111)

| Benchmark | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| ARC-AGI-2 | 54.2% | — |
| SimpleBench | 57.4% | — |
| NYT Connections (extended) | 79.3% | — |
| ARC-AGI-1 | 90.5% | — |
| LMArena Hard Prompts | — | 1395 |
| Epoch Capabilities Index | 155.41 | — |

## Math

- GPT-5.2 Pro: 64.8 (#23)
- Muse Glimmer: 36.1 (#128)

| Benchmark | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74% | — |
| FrontierMath Tier 4 | 46% | — |
| LMArena Math | — | 1419 |
| FrontierMath Tier 4 (v1) | 31.3% | — |

## Knowledge

- GPT-5.2 Pro: —
- Muse Glimmer: 37.9 (#140)

| Benchmark | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| LMArena Expert | — | 1388 |

## Multilingual

- GPT-5.2 Pro: —
- Muse Glimmer: 50.6 (#117)

| Benchmark | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| LMArena Non-English | — | 1384 |
| LMArena Chinese | — | 1412 |
| LMArena Russian | — | 1393 |

## Instruction Following

- GPT-5.2 Pro: —
- Muse Glimmer: 72.7 (#134)

| Benchmark | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | — | 1374 |

## Long Context

- GPT-5.2 Pro: —
- Muse Glimmer: 42.1 (#124)

| Benchmark | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | — | 1381 |

## Writing & Preference

- GPT-5.2 Pro: —
- Muse Glimmer: 57.7 (#122)

| Benchmark | GPT-5.2 Pro | Muse Glimmer |
|---|---|---|
| LMArena Text | — | 1389 |
| LMArena Creative Writing | — | 1338 |
| LMArena Multi-Turn | — | 1398 |

## FAQ

### Is GPT-5.2 Pro better than Muse Glimmer?

GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 41.3 on the Noometry Index.

### How many benchmarks do GPT-5.2 Pro and Muse Glimmer share?

0 benchmarks have published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and Muse Glimmer has 13.