# Chatgpt 4o Latest 20250326 vs Kimi K3

> Kimi K3 is the stronger model overall, scoring 59.5 to 43.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/chatgpt-4o-vs-kimi-k3
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 1 category and Kimi K3 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K3 leads 74.2 to 38.6.
- Kimi K3 has downloadable open weights; the other is API-only.

## Snapshot

| | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Noometry Index | 43.8 | 59.5 |
| Rank | 82 | 15 |
| Context | — | 1.05M |
| Input $/M | — | $3 |
| Output $/M | — | $15 |
| Weights | Proprietary | Open |

## Coding

- Chatgpt 4o Latest 20250326: 41.6 (#122)
- Kimi K3: 61.0 (#10)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Coding | 1413 | 1508 |
| DeepSWE | — | 68.5% |
| FrontierCode | — | 44.2% |
| LMArena WebDev | — | 1654 |
| FrontierSWE | — | 25.9% |
| SciCode | — | 59.5% |
| WeirdML | — | 82.6% |
| ALE-Bench | — | 1,524 |

## Agentic & Tool Use

- Chatgpt 4o Latest 20250326: —
- Kimi K3: 41.8 (#20)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| APEX-Agents | — | 50.6% |
| τ²-bench Banking | — | 37.1% |
| PostTrainBench | — | 32% |
| GBAEval | — | 48.3% |
| GDP.pdf | — | 19% |
| Vending-Bench 2 | — | 5,165 |

## Reasoning

- Chatgpt 4o Latest 20250326: 33.8 (#71)
- Kimi K3: 63.0 (#17)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1496 |
| ARC-AGI-2 | — | 60.4% |
| SimpleBench | — | 60.7% |
| Kagi LLM Benchmark | 75% | — |
| NYT Connections (extended) | — | 93.6% |
| ARC-AGI-1 | — | 94.5% |
| CritPt | — | 23.4% |
| Chess Puzzles | — | 39% |
| Mystery Game Puzzles | — | 26% |
| DTBench | — | 91.2% |
| LMCA | — | 52.7% |
| Surface Evolver Bench | — | 95% |
| Epoch Capabilities Index | — | 157.45 |
| ForecastBench | — | 61.1 |

## Math

- Chatgpt 4o Latest 20250326: 38.6 (#134)
- Kimi K3: 74.2 (#16)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Math | 1407 | 1491 |
| FrontierMath (Tiers 1-3) | — | 72.2% |
| FrontierMath Tier 4 | — | 39% |
| MathArena Final-Answer Competitions | — | 87.8% |
| OTIS Mock AIME 2024-2025 | — | 97.2% |
| ProofBench | — | 87% |

## Knowledge

- Chatgpt 4o Latest 20250326: 39.2 (#137)
- Kimi K3: 63.2 (#21)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Expert | 1401 | 1521 |
| GPQA Diamond | — | 93.1% |
| SimpleQA Verified | — | 50.6% |
| Confabulations | 16.6% | — |

## Multimodal

- Chatgpt 4o Latest 20250326: 39.6 (#58)
- Kimi K3: 37.8 (#70)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Vision | 1243 | — |
| Blueprint-Bench 2 | — | 29.5% |
| Furniture Assembly | — | 34.2% |

## Multilingual

- Chatgpt 4o Latest 20250326: 52.9 (#76)
- Kimi K3: 56.3 (#21)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Non-English | 1419 | 1466 |
| LMArena Chinese | 1457 | 1529 |
| LMArena French | 1446 | 1491 |
| LMArena German | 1423 | 1488 |
| LMArena Japanese | 1405 | 1487 |
| LMArena Korean | 1396 | 1458 |
| LMArena Russian | 1429 | 1482 |
| LMArena Spanish | 1434 | 1472 |

## Instruction Following

- Chatgpt 4o Latest 20250326: 74.0 (#107)
- Kimi K3: 77.7 (#14)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1483 |

## Long Context

- Chatgpt 4o Latest 20250326: 43.1 (#107)
- Kimi K3: 45.8 (#29)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Longer Query | 1413 | 1494 |

## Writing & Preference

- Chatgpt 4o Latest 20250326: 62.6 (#72)
- Kimi K3: 76.6 (#4)

| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K3 |
|---|---|---|
| LMArena Text | 1429 | 1476 |
| LMArena Creative Writing | 1405 | 1454 |
| EQ-Bench Creative Writing | 1501 | 2082 |
| LMArena Multi-Turn | 1454 | 1488 |
| EQ-Bench 4 | — | 1339 |

## FAQ

### Is Chatgpt 4o Latest 20250326 better than Kimi K3?

Kimi K3 is the stronger model overall, scoring 59.5 to 43.8 on the Noometry Index.

### Is Chatgpt 4o Latest 20250326 or Kimi K3 better for coding?

Kimi K3 scores higher on coding benchmarks: 61.0 versus 41.6 in the Noometry coding category.

### How many benchmarks do Chatgpt 4o Latest 20250326 and Kimi K3 share?

18 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Kimi K3 has 53.