# Chatgpt 4o Latest 20250326 vs GPT-6.1 Sol

> GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 43.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/chatgpt-4o-vs-gpt-6-1-sol
- Last updated: 2026-10-10
- Shared benchmarks: 13

## Summary

- They share 13 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 0 categories and GPT-6.1 Sol in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-6.1 Sol leads 93.7 to 38.6.

## Snapshot

| | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 43.8 | 65.6 |
| Rank | 82 | 6 |
| Context | — | 1.05M |
| Input $/M | — | $2 |
| Output $/M | — | $10 |
| Weights | Proprietary | Proprietary |

## Coding

- Chatgpt 4o Latest 20250326: 41.6 (#122)
- GPT-6.1 Sol: 63.2 (#8)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Coding | 1413 | 1487 |
| DeepSWE | — | 75.2% |
| FrontierCode | — | 50.2% |
| LMArena WebDev | — | 1755 |
| SciCode | — | 55.8% |

## Agentic & Tool Use

- Chatgpt 4o Latest 20250326: —
- GPT-6.1 Sol: 39.6 (#26)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| APEX-Agents | — | 60% |
| GDP.pdf | — | 32% |

## Reasoning

- Chatgpt 4o Latest 20250326: 33.8 (#71)
- GPT-6.1 Sol: 81.9 (#2)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1466 |
| ARC-AGI-2 | — | 94.2% |
| Kagi LLM Benchmark | 75% | — |
| NYT Connections (extended) | — | 95.5% |
| ARC-AGI-1 | — | 98.5% |
| CritPt | — | 31.7% |
| Chess Puzzles | — | 61% |
| EBR-Bench | — | 54.3% |
| Mystery Game Puzzles | — | 80% |
| Epoch Capabilities Index | — | 166.09 |

## Math

- Chatgpt 4o Latest 20250326: 38.6 (#134)
- GPT-6.1 Sol: 93.7 (#1)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Math | 1407 | 1464 |
| FrontierMath (Tiers 1-3) | — | 93.7% |
| FrontierMath Tier 4 | — | 100% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| ProofBench | — | 99% |

## Knowledge

- Chatgpt 4o Latest 20250326: 39.2 (#137)
- GPT-6.1 Sol: 71.8 (#4)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Expert | 1401 | 1502 |
| GPQA Diamond | — | 95.4% |
| SimpleQA Verified | — | 73.9% |
| Confabulations | 16.6% | — |

## Multimodal

- Chatgpt 4o Latest 20250326: 39.6 (#58)
- GPT-6.1 Sol: 52.7 (#5)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Vision | 1243 | 1288 |
| Furniture Assembly | — | 80% |

## Multilingual

- Chatgpt 4o Latest 20250326: 52.9 (#76)
- GPT-6.1 Sol: 54.3 (#46)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Non-English | 1419 | 1438 |
| LMArena Chinese | 1457 | 1477 |
| LMArena Russian | 1429 | 1455 |
| LMArena French | 1446 | — |
| LMArena German | 1423 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1396 | — |
| LMArena Spanish | 1434 | — |

## Instruction Following

- Chatgpt 4o Latest 20250326: 74.0 (#107)
- GPT-6.1 Sol: 77.0 (#29)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Instruction Following | 1403 | 1468 |

## Long Context

- Chatgpt 4o Latest 20250326: 43.1 (#107)
- GPT-6.1 Sol: 44.9 (#54)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Longer Query | 1413 | 1465 |

## Writing & Preference

- Chatgpt 4o Latest 20250326: 62.6 (#72)
- GPT-6.1 Sol: 63.6 (#63)

| Benchmark | Chatgpt 4o Latest 20250326 | GPT-6.1 Sol |
|---|---|---|
| LMArena Text | 1429 | 1447 |
| LMArena Creative Writing | 1405 | 1432 |
| LMArena Multi-Turn | 1454 | 1449 |
| EQ-Bench Creative Writing | 1501 | — |

## FAQ

### Is Chatgpt 4o Latest 20250326 better than GPT-6.1 Sol?

GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 43.8 on the Noometry Index.

### Is Chatgpt 4o Latest 20250326 or GPT-6.1 Sol better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 63.2 versus 41.6 in the Noometry coding category.

### How many benchmarks do Chatgpt 4o Latest 20250326 and GPT-6.1 Sol share?

13 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and GPT-6.1 Sol has 34.