# GPT-6 Luna vs Wizardlm 13b

> GPT-6 Luna is the stronger model overall, scoring 45.1 to 30.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-6-luna-vs-wizardlm-13b
- Last updated: 2026-10-10
- Shared benchmarks: 10

## Summary

- They share 10 benchmarks with published results for both. GPT-6 Luna scores higher in 7 categories and Wizardlm 13b in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-6 Luna leads 58.4 to 30.7.
- Wizardlm 13b has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 45.1 | 30.8 |
| Rank | 65 | 272 |
| Context | 1.05M | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.50 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-6 Luna: 54.7 (#24)
- Wizardlm 13b: 29.6 (#293)

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| LMArena Coding | 1448 | 1035 |
| DeepSWE | 66.6% | — |
| FrontierCode | 42.4% | — |
| LMArena WebDev | 1583 | — |

## Reasoning

- GPT-6 Luna: 31.7 (#68)
- Wizardlm 13b: 18.5 (#265)

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| LMArena Hard Prompts | 1415 | 1018 |
| NYT Connections (extended) | 68.7% | — |

## Math

- GPT-6 Luna: 35.6 (#140)
- Wizardlm 13b: 27.8 (#235)

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| LMArena Math | 1396 | 1017 |

## Knowledge

- GPT-6 Luna: 40.1 (#110)
- Wizardlm 13b: —

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| LMArena Expert | 1458 | — |

## Multimodal

- GPT-6 Luna: 42.0 (#27)
- Wizardlm 13b: —

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| Furniture Assembly | 44.2% | — |

## Multilingual

- GPT-6 Luna: 51.0 (#111)
- Wizardlm 13b: 27.3 (#272)

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| LMArena Non-English | 1390 | 1034 |
| LMArena Chinese | 1425 | 1023 |
| LMArena Russian | 1392 | — |
| LMArena Spanish | 1416 | — |

## Instruction Following

- GPT-6 Luna: 74.7 (#85)
- Wizardlm 13b: 53.7 (#280)

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| LMArena Instruction Following | 1414 | 1049 |

## Long Context

- GPT-6 Luna: 43.3 (#95)
- Wizardlm 13b: 32.0 (#268)

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| LMArena Longer Query | 1417 | 1054 |

## Writing & Preference

- GPT-6 Luna: 58.4 (#115)
- Wizardlm 13b: 30.7 (#282)

| Benchmark | GPT-6 Luna | Wizardlm 13b |
|---|---|---|
| LMArena Text | 1392 | 1077 |
| LMArena Creative Writing | 1357 | 1090 |
| LMArena Multi-Turn | 1400 | 1047 |

## FAQ

### Is GPT-6 Luna better than Wizardlm 13b?

GPT-6 Luna is the stronger model overall, scoring 45.1 to 30.8 on the Noometry Index.

### Is GPT-6 Luna or Wizardlm 13b better for coding?

GPT-6 Luna scores higher on coding benchmarks: 54.7 versus 29.6 in the Noometry coding category.

### How many benchmarks do GPT-6 Luna and Wizardlm 13b share?

10 benchmarks have published results for both models. GPT-6 Luna has 18 scored results on Noometry and Wizardlm 13b has 10.