Model comparison
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.
Last verified . 13 shared benchmarks.
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.
Side by side
| Chatgpt 4o Latest 20250326 | GPT-6.1 Sol | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 43.8 | 65.6 |
| Released | — | 2026-09-29 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $2 |
| Output $ / M tokens | — | $10 |
| Results tracked | 21 | 34 |
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Category by category
Coding GPT-6.1 Sol leads
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 Not comparable
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 GPT-6.1 Sol leads
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 GPT-6.1 Sol leads
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 GPT-6.1 Sol leads
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 GPT-6.1 Sol leads
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 GPT-6.1 Sol leads
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 GPT-6.1 Sol leads
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 GPT-6.1 Sol leads
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 GPT-6.1 Sol leads
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 | — |
Frequently asked questions
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.