Model comparison
Chatgpt 4o Latest 20250326 vs Grok 4.20 Multi-Agent
Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 43.2 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 42.4 to 32.8.
Side by side
| Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 43.2 | 45.5 |
| 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: 41.0 (#122), Grok 4.20 Multi-Agent: 42.4 (#91)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1413 | 1458 |
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: 32.8 (#64), Grok 4.20 Multi-Agent: 42.4 (#44)
| 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: 35.8 (#134), Grok 4.20 Multi-Agent: 36.6 (#106)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | 1407 | 1441 |
Knowledge Grok 4.20 Multi-Agent leads
Chatgpt 4o Latest 20250326: 38.7 (#131), Grok 4.20 Multi-Agent: 39.7 (#116)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1400 | 1445 |
| Confabulations | 16.6% | — |
Multimodal Too close to call
Chatgpt 4o Latest 20250326: 38.9 (#54), Grok 4.20 Multi-Agent: 39.8 (#44)
| 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: 53.1 (#72), Grok 4.20 Multi-Agent: 54.6 (#40)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1419 | 1440 |
| LMArena Chinese | 1456 | 1475 |
| LMArena French | 1447 | 1467 |
| LMArena German | 1424 | 1456 |
| LMArena Japanese | 1406 | 1405 |
| LMArena Korean | 1397 | 1416 |
| LMArena Russian | 1429 | 1457 |
| LMArena Spanish | 1435 | 1447 |
Instruction Following Too close to call
Chatgpt 4o Latest 20250326: 74.2 (#102), Grok 4.20 Multi-Agent: 75.0 (#80)
| 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 (#104), Grok 4.20 Multi-Agent: 43.7 (#84)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1413 | 1430 |
Writing & Preference Grok 4.20 Multi-Agent leads
Chatgpt 4o Latest 20250326: 62.8 (#68), Grok 4.20 Multi-Agent: 64.1 (#57)
| Benchmark | Chatgpt 4o Latest 20250326 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1429 | 1450 |
| LMArena Creative Writing | 1406 | 1435 |
| LMArena Multi-Turn | 1454 | 1451 |
| 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 45.5 to 43.2 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: 42.4 versus 41.0 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.