# Mercury 2.5 vs Muse Glimmer

> Muse Glimmer has enough public results to be ranked (#128); Mercury 2.5 does not yet, so treat this comparison as directional.

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

## Summary

- The widest gap is in math, where Muse Glimmer leads 36.1 to 22.4.
- Muse Glimmer has downloadable open weights; the other is API-only.

## Snapshot

| | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| Provider | Inception | Meta |
| Noometry Index | 30.2 | 41.3 |
| Rank | — | 128 |
| Context | 260K | — |
| Input $/M | $0.04 | — |
| Output $/M | $0.15 | — |
| Weights | Proprietary | Open |

## Coding

- Mercury 2.5: —
- Muse Glimmer: 38.7 (#157)

| Benchmark | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| LMArena WebDev | — | 1355 |
| LMArena Coding | — | 1417 |
| ALE-Bench | 301.65 | — |

## Reasoning

- Mercury 2.5: —
- Muse Glimmer: 27.2 (#111)

| Benchmark | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| LMArena Hard Prompts | — | 1395 |

## Math

- Mercury 2.5: 22.4
- Muse Glimmer: 36.1 (#128)

| Benchmark | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| ProofBench | 3% | — |
| LMArena Math | — | 1419 |

## Knowledge

- Mercury 2.5: —
- Muse Glimmer: 37.9 (#140)

| Benchmark | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| LMArena Expert | — | 1388 |

## Multilingual

- Mercury 2.5: —
- Muse Glimmer: 50.6 (#117)

| Benchmark | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| LMArena Non-English | — | 1384 |
| LMArena Chinese | — | 1412 |
| LMArena Russian | — | 1393 |

## Instruction Following

- Mercury 2.5: —
- Muse Glimmer: 72.7 (#134)

| Benchmark | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| LMArena Instruction Following | — | 1374 |

## Long Context

- Mercury 2.5: —
- Muse Glimmer: 42.1 (#124)

| Benchmark | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| LMArena Longer Query | — | 1381 |

## Writing & Preference

- Mercury 2.5: —
- Muse Glimmer: 57.7 (#122)

| Benchmark | Mercury 2.5 | Muse Glimmer |
|---|---|---|
| LMArena Text | — | 1389 |
| LMArena Creative Writing | — | 1338 |
| LMArena Multi-Turn | — | 1398 |

## FAQ

### Is Mercury 2.5 better than Muse Glimmer?

Muse Glimmer has enough public results to be ranked (#128); Mercury 2.5 does not yet, so treat this comparison as directional.

### How many benchmarks do Mercury 2.5 and Muse Glimmer share?

0 benchmarks have published results for both models. Mercury 2.5 has 2 scored results on Noometry and Muse Glimmer has 13.