Model comparison
GPT-5.3 Chat vs Llama2 70b Steerlm Chat
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 31.2 on the Noometry Index.
Last verified . 9 shared benchmarks.
NVIDIASummary
- They share 9 benchmarks with published results for both. GPT-5.3 Chat scores higher in 7 categories and Llama2 70b Steerlm Chat in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-5.3 Chat leads 63.3 to 31.8.
- Llama2 70b Steerlm Chat has downloadable open weights; the other is API-only.
Side by side
| GPT-5.3 Chat | Llama2 70b Steerlm Chat | |
|---|---|---|
| Provider | OpenAI | NVIDIA |
| Noometry Index | 42.1 | 31.2 |
| Released | 2026-03-03 | — |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 16K | — |
| Input $ / M tokens | $1.75 | — |
| Output $ / M tokens | $14 | — |
| Results tracked | 18 | 9 |
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Category by category
Coding GPT-5.3 Chat leads
GPT-5.3 Chat: 40.8 (#124), Llama2 70b Steerlm Chat: 29.3 (#295)
| Benchmark | GPT-5.3 Chat | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Coding | 1408 | 1025 |
Reasoning GPT-5.3 Chat leads
GPT-5.3 Chat: 27.3 (#105), Llama2 70b Steerlm Chat: 19.1 (#245)
| Benchmark | GPT-5.3 Chat | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Hard Prompts | 1399 | 1047 |
Math GPT-5.3 Chat leads
GPT-5.3 Chat: 35.4 (#146), Llama2 70b Steerlm Chat: 28.8 (#223)
| Benchmark | GPT-5.3 Chat | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Math | 1389 | 1072 |
Knowledge Not comparable
GPT-5.3 Chat: 38.2 (#137), Llama2 70b Steerlm Chat: —
| Benchmark | GPT-5.3 Chat | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Expert | 1397 | — |
Multilingual GPT-5.3 Chat leads
GPT-5.3 Chat: 50.5 (#119), Llama2 70b Steerlm Chat: 28.9 (#265)
| Benchmark | GPT-5.3 Chat | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Non-English | 1383 | 1064 |
| LMArena Chinese | 1433 | — |
| LMArena French | 1398 | — |
| LMArena German | 1384 | — |
| LMArena Japanese | 1351 | — |
| LMArena Korean | 1347 | — |
| LMArena Russian | 1400 | — |
| LMArena Spanish | 1371 | — |
Instruction Following GPT-5.3 Chat leads
GPT-5.3 Chat: 73.0 (#124), Llama2 70b Steerlm Chat: 54.5 (#274)
| Benchmark | GPT-5.3 Chat | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Instruction Following | 1378 | 1061 |
Long Context GPT-5.3 Chat leads
GPT-5.3 Chat: 42.6 (#115), Llama2 70b Steerlm Chat: 30.4 (#283)
| Benchmark | GPT-5.3 Chat | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Longer Query | 1396 | 998 |
Writing & Preference GPT-5.3 Chat leads
GPT-5.3 Chat: 63.3 (#65), Llama2 70b Steerlm Chat: 31.8 (#278)
| Benchmark | GPT-5.3 Chat | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Text | 1389 | 1098 |
| LMArena Creative Writing | 1356 | 1091 |
| LMArena Multi-Turn | 1413 | 1058 |
| EQ-Bench Creative Writing | 1690 | — |
Frequently asked questions
Is GPT-5.3 Chat better than Llama2 70b Steerlm Chat?
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 31.2 on the Noometry Index.
Is GPT-5.3 Chat or Llama2 70b Steerlm Chat better for coding?
GPT-5.3 Chat scores higher on coding benchmarks: 40.8 versus 29.3 in the Noometry coding category.
How many benchmarks do GPT-5.3 Chat and Llama2 70b Steerlm Chat share?
9 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Llama2 70b Steerlm Chat has 9.