# GPT-4o vs Yi-34B

> GPT-4o and Yi-34B score almost the same on the Noometry Index (28.6 vs 27.8), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/gpt-4o-vs-yi-34b
- Last updated: 2026-10-10
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. GPT-4o scores higher in 5 categories and Yi-34B in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-4o leads 28.8 to 7.5.
- The biggest single-benchmark swing is MATH Level 5: 53.3% for GPT-4o and 5.1% for Yi-34B.
- Yi-34B has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4o | Yi-34B |
|---|---|---|
| Provider | OpenAI | 01.AI |
| Noometry Index | 28.6 | 27.8 |
| Rank | 324 | 329 |
| Context | 128K | — |
| Input $/M | $2.50 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-4o: 24.8 (#328)
- Yi-34B: 32.3 (#274)

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| LMArena Coding | 1297 | 1112 |
| SWE-bench Verified | 31% | — |
| SWE-bench Verified (bash only) | 21.6% | — |
| Aider Polyglot | 45.3% | — |
| GSO | 0% | — |
| WeirdML | 25.1% | — |
| BigCodeBench Instruct | 51.1% | — |
| LiveBench Coding | 51.4% | — |
| BigCodeBench Complete | 61.1% | — |
| CadEval | 26% | — |
| HumanEval+ | 87.2% | — |
| MBPP+ | 72.2% | — |

## Agentic & Tool Use

- GPT-4o: 21.0 (#141)
- Yi-34B: —

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| GDPval | 9.9% | — |
| TheAgentCompany | 8.6% | — |
| Cybench | 12.5% | — |
| BALROG | 32.3% | — |
| LMArena Search | 1006 | — |
| METR Time Horizons | 40.8% | — |

## Reasoning

- GPT-4o: 9.4 (#343)
- Yi-34B: 21.2 (#226)

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| LMArena Hard Prompts | 1281 | 1104 |
| Epoch Capabilities Index | 128.97 | 117.39 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 17.8% | — |
| ARC-AGI-1 | 4.5% | — |
| CritPt | 0% | — |
| Chess Puzzles | 13% | — |
| EnigmaEval | 0.8% | — |
| LiveBench Reasoning | 55.8% | — |
| DTBench | 64.5% | — |
| LiveBench Data Analysis | 60.9% | — |
| LMCA | 16.6% | — |
| BIG-Bench Hard | — | 71.7% |
| ForecastBench | 57.7 | — |
| LiveBench | 55.3% | — |

## Math

- GPT-4o: 10.6 (#312)
- Yi-34B: 21.6 (#282)

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| LMArena Math | 1285 | 1114 |
| MATH Level 5 | 53.3% | 5.1% |
| FrontierMath (Tiers 1-3) | 0.4% | — |
| OTIS Mock AIME 2024-2025 | 6.4% | — |
| Omni-MATH | 29.3% | — |
| LiveBench Math | 49.5% | — |
| FrontierMath (Feb 2025 set) | 0.3% | — |
| GSM8K | — | 76% |

## Knowledge

- GPT-4o: 28.8 (#242)
- Yi-34B: 7.5 (#309)

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| GPQA Diamond | 49.2% | 14.7% |
| LMArena Expert | 1250 | 1061 |
| MMLU | 88.1% | 76.3% |
| Humanity's Last Exam | 2.7% | — |
| SimpleQA Verified | 26% | — |
| MMLU-Pro | 71.3% | — |
| Confabulations | 15.3% | — |
| Vectara Hallucination Rate | 9.6% | — |
| GPQA (HELM) | 52% | — |

## Multimodal

- GPT-4o: 34.5 (#91)
- Yi-34B: —

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| LMArena Vision | 1137 | — |
| Video-MME | 71.9% | — |
| GeoBench | 71% | — |
| VPCT | 40% | — |
| ScienceQA | 88.5% | — |

## Multilingual

- GPT-4o: 43.2 (#186)
- Yi-34B: 29.7 (#264)

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| LMArena Non-English | 1283 | 1079 |
| LMArena Chinese | 1277 | 1176 |
| LMArena French | 1304 | 1081 |
| LMArena German | 1282 | 1042 |
| LMArena Japanese | 1257 | 993 |
| LMArena Korean | 1234 | 959 |
| LMArena Russian | 1286 | 1050 |
| LMArena Spanish | 1292 | 1070 |

## Instruction Following

- GPT-4o: 66.6 (#207)
- Yi-34B: 56.2 (#274)

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| LMArena Instruction Following | 1278 | 1091 |
| LiveBench Instruction Following | 68.6% | — |
| IFEval | 81.7% | — |

## Long Context

- GPT-4o: 39.4 (#179)
- Yi-34B: 33.2 (#264)

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| LMArena Longer Query | 1289 | 1094 |
| Fiction.LiveBench | 66.7% | — |

## Writing & Preference

- GPT-4o: 52.6 (#166)
- Yi-34B: 34.1 (#273)

| Benchmark | GPT-4o | Yi-34B |
|---|---|---|
| LMArena Text | 1300 | 1129 |
| LMArena Creative Writing | 1292 | 1108 |
| LMArena Multi-Turn | 1302 | 1113 |
| Short-Story Creative Writing | 81.8% | — |
| WildBench | 82.8% | — |
| LiveBench Language | 47.6% | — |

## FAQ

### Is GPT-4o better than Yi-34B?

GPT-4o and Yi-34B score almost the same on the Noometry Index (28.6 vs 27.8), so choose on price, context window or the category you care about most.

### Is GPT-4o or Yi-34B better for coding?

Yi-34B scores higher on coding benchmarks: 32.3 versus 24.8 in the Noometry coding category.

### How many benchmarks do GPT-4o and Yi-34B share?

21 benchmarks have published results for both models. GPT-4o has 72 scored results on Noometry and Yi-34B has 23.