# GLM-4.5 vs GPT-6.1 Sol

> GLM-4.5 has enough public results to be ranked (#125); GPT-6.1 Sol does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/glm-4-5-vs-gpt-6-1-sol
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where GPT-6.1 Sol leads 51.4 to 41.1.
- GLM-4.5 is cheaper at $0.60 / $2.20 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
- GPT-6.1 Sol accepts more context: 1.05M tokens versus 131K.
- GLM-4.5 has downloadable open weights; the other is API-only.

## Snapshot

| | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| Provider | Z.ai (Zhipu) | OpenAI |
| Noometry Index | 41.4 | 42.1 |
| Rank | 125 | — |
| Context | 131K | 1.05M |
| Input $/M | $0.60 | $2 |
| Output $/M | $2.20 | $10 |
| Weights | Open | Proprietary |

## Coding

- GLM-4.5: 41.1 (#121)
- GPT-6.1 Sol: 51.4

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| DeepSWE | — | 75.2% |
| SWE-bench Verified (bash only) | 54.2% | — |
| WeirdML | 40.6% | — |
| LMArena Coding | 1434 | — |
| ALE-Bench | 344.82 | — |
| AlgoTune | 1.52 | — |

## Agentic & Tool Use

- GLM-4.5: —
- GPT-6.1 Sol: 34.3

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| GDP.pdf | — | 32% |

## Reasoning

- GLM-4.5: 27.7 (#99)
- GPT-6.1 Sol: —

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| Kagi LLM Benchmark | 57.9% | — |
| LMArena Hard Prompts | 1430 | — |

## Math

- GLM-4.5: 36.3 (#119)
- GPT-6.1 Sol: —

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| LMArena Math | 1427 | — |

## Knowledge

- GLM-4.5: 35.5 (#172)
- GPT-6.1 Sol: —

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| Humanity's Last Exam | 8.3% | — |
| Confabulations | 11.3% | — |
| LMArena Expert | 1433 | — |

## Multilingual

- GLM-4.5: 53.0 (#74)
- GPT-6.1 Sol: —

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| LMArena Non-English | 1417 | — |
| LMArena Chinese | 1465 | — |
| LMArena French | 1423 | — |
| LMArena German | 1406 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1382 | — |
| LMArena Russian | 1414 | — |
| LMArena Spanish | 1454 | — |

## Instruction Following

- GLM-4.5: 74.3 (#100)
- GPT-6.1 Sol: —

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| LMArena Instruction Following | 1405 | — |

## Long Context

- GLM-4.5: 38.2 (#196)
- GPT-6.1 Sol: —

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| Fiction.LiveBench | 58.3% | — |
| LMArena Longer Query | 1413 | — |

## Writing & Preference

- GLM-4.5: 57.7 (#121)
- GPT-6.1 Sol: —

| Benchmark | GLM-4.5 | GPT-6.1 Sol |
|---|---|---|
| LMArena Text | 1430 | — |
| LMArena Creative Writing | 1395 | — |
| Short-Story Creative Writing | 73.4% | — |
| EQ-Bench Creative Writing | 1343 | — |
| LMArena Multi-Turn | 1415 | — |

## FAQ

### Is GLM-4.5 better than GPT-6.1 Sol?

GLM-4.5 has enough public results to be ranked (#125); GPT-6.1 Sol does not yet, so treat this comparison as directional.

### Which is cheaper, GLM-4.5 or GPT-6.1 Sol?

GLM-4.5 is cheaper. It lists at $0.60 per million input tokens and $2.20 per million output tokens; GPT-6.1 Sol lists at $2 and $10.

### Is GLM-4.5 or GPT-6.1 Sol better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 51.4 versus 41.1 in the Noometry coding category.

### Which has the bigger context window?

GPT-6.1 Sol does, with 1.05M tokens against 131K.

### How many benchmarks do GLM-4.5 and GPT-6.1 Sol share?

0 benchmarks have published results for both models. GLM-4.5 has 27 scored results on Noometry and GPT-6.1 Sol has 2.