Model comparison
Chatgpt 4o Latest 20250326 vs Grok 4.20 Multi-Agent
Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 43.8 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 0 categories and Grok 4.20 Multi-Agent in 9 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 43.9 to 33.8.
Side by side
| Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 43.8 | 46.2 |
| Released | — | 2026-03-09 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1M |
| Max output | — | 30K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $2.50 |
| Results tracked | 21 | 20 |
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Category by category
Coding Grok 4.20 Multi-Agent leads
Chatgpt 4o Latest 20250326: 41.6 (#122), Grok 4.20 Multi-Agent: 43.0 (#92)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1413 | 1457 |
Agentic & Tool Use Not comparable
Chatgpt 4o Latest 20250326: —, Grok 4.20 Multi-Agent: —
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Search | — | 1204 |
Reasoning Grok 4.20 Multi-Agent leads
Chatgpt 4o Latest 20250326: 33.8 (#71), Grok 4.20 Multi-Agent: 43.9 (#48)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1448 |
| Kagi LLM Benchmark | 75% | — |
| NYT Connections (extended) | — | 89.6% |
Math Too close to call
Chatgpt 4o Latest 20250326: 38.6 (#134), Grok 4.20 Multi-Agent: 39.4 (#104)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | 1407 | 1442 |
Knowledge Grok 4.20 Multi-Agent leads
Chatgpt 4o Latest 20250326: 39.2 (#137), Grok 4.20 Multi-Agent: 40.4 (#119)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1401 | 1445 |
| Confabulations | 16.6% | — |
Multimodal Too close to call
Chatgpt 4o Latest 20250326: 39.6 (#58), Grok 4.20 Multi-Agent: 40.5 (#48)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Vision | 1243 | 1259 |
Multilingual Grok 4.20 Multi-Agent leads
Chatgpt 4o Latest 20250326: 52.9 (#76), Grok 4.20 Multi-Agent: 54.4 (#43)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1419 | 1440 |
| LMArena Chinese | 1457 | 1475 |
| LMArena French | 1446 | 1466 |
| LMArena German | 1423 | 1456 |
| LMArena Japanese | 1405 | 1405 |
| LMArena Korean | 1396 | 1416 |
| LMArena Russian | 1429 | 1457 |
| LMArena Spanish | 1434 | 1447 |
Instruction Following Too close to call
Chatgpt 4o Latest 20250326: 74.0 (#107), Grok 4.20 Multi-Agent: 74.8 (#84)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Instruction Following | 1403 | 1420 |
Long Context Too close to call
Chatgpt 4o Latest 20250326: 43.1 (#107), Grok 4.20 Multi-Agent: 43.7 (#88)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1413 | 1431 |
Writing & Preference Grok 4.20 Multi-Agent leads
Chatgpt 4o Latest 20250326: 62.6 (#72), Grok 4.20 Multi-Agent: 64.0 (#59)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1429 | 1450 |
| LMArena Creative Writing | 1405 | 1436 |
| LMArena Multi-Turn | 1454 | 1452 |
| EQ-Bench Creative Writing | 1501 | — |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than Grok 4.20 Multi-Agent?
Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 43.8 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or Grok 4.20 Multi-Agent better for coding?
Grok 4.20 Multi-Agent scores higher on coding benchmarks: 43.0 versus 41.6 in the Noometry coding category.
How many benchmarks do Chatgpt 4o Latest 20250326 and Grok 4.20 Multi-Agent share?
18 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Grok 4.20 Multi-Agent has 20.