Model comparison
GPT-5.6 Sol vs Llama 4 Scout
GPT-5.6 Sol is the stronger model overall, scoring 65.0 to 27.7 on the Noometry Index. Llama 4 Scout costs 53× less per token, which makes it the better buy when GPT-5.6 Sol's lead doesn't matter for your workload.
Last verified . 30 shared benchmarks.
MetaSummary
- They share 30 benchmarks with published results for both. GPT-5.6 Sol scores higher in 10 categories and Llama 4 Scout in 0 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.6 Sol leads 85.6 to 19.6.
- The biggest single-benchmark swing is ARC-AGI-1: 97.5% for GPT-5.6 Sol and 0.5% for Llama 4 Scout.
- Llama 4 Scout is cheaper at $0.10 / $0.30 per million input/output tokens, against $4 / $20 for GPT-5.6 Sol.
- GPT-5.6 Sol accepts more context: 1.05M tokens versus 128K.
- Llama 4 Scout has downloadable open weights; the other is API-only.
Side by side
| GPT-5.6 Sol | Llama 4 Scout | |
|---|---|---|
| Provider | OpenAI | Meta |
| Noometry Index | 65.0 | 27.7 |
| Released | 2026-07-09 | 2025-04-05 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 128K |
| Max output | 128K | 4K |
| Input $ / M tokens | $4 | $0.10 |
| Output $ / M tokens | $20 | $0.30 |
| Results tracked | 65 | 43 |
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Category by category
Coding GPT-5.6 Sol leads
GPT-5.6 Sol: 65.1 (#7), Llama 4 Scout: 20.2 (#339)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| SciCode | 57.1% | 17% |
| LMArena Coding | 1498 | 1286 |
| DeepSWE | 72.7% | — |
| FrontierCode | 47.5% | — |
| SWE-bench Verified (bash only) | — | 9.1% |
| CursorBench | 41.7% | — |
| LMArena WebDev | 1618 | — |
| FrontierSWE | 32.2% | — |
| GSO | 76.5% | — |
| WeirdML | 89.4% | — |
| MirrorCode | 20% | — |
| BigCodeBench Complete | — | 43.1% |
| ALE-Bench | 2,177 | — |
Agentic & Tool Use GPT-5.6 Sol leads
GPT-5.6 Sol: 50.3 (#7), Llama 4 Scout: 24.6 (#119)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| APEX-Agents | 51.4% | — |
| Berkeley Function Calling Leaderboard | — | 28.1% |
| OSWorld 2.0 | 27.3% | — |
| τ²-bench Banking | 46.9% | — |
| PostTrainBench | 36.2% | — |
| BALROG | 60% | — |
| GBAEval | 52.6% | — |
| GDP.pdf | 30.7% | — |
| LMArena Search | 1257 | — |
| Vending-Bench 2 | 9,619 | — |
Reasoning GPT-5.6 Sol leads
GPT-5.6 Sol: 74.8 (#8), Llama 4 Scout: 9.1 (#345)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| ARC-AGI-2 | 92.5% | 0% |
| Kagi LLM Benchmark | 67% | 36.9% |
| ARC-AGI-1 | 97.5% | 0.5% |
| CritPt | 32.3% | 0% |
| LMArena Hard Prompts | 1484 | 1266 |
| DTBench | 96% | 57.9% |
| LMCA | 59.2% | 12% |
| Epoch Capabilities Index | 161.66 | 129.64 |
| SimpleBench | 71.7% | — |
| NYT Connections (extended) | 93.8% | — |
| Chess Puzzles | 64% | — |
| EnigmaEval | 37.1% | — |
| EBR-Bench | 44.8% | — |
| Mystery Game Puzzles | 58% | — |
| Surface Evolver Bench | 93.1% | — |
| Bench to the Future 3 | 0.14 | — |
| ForecastBench | — | 57.5 |
Math GPT-5.6 Sol leads
GPT-5.6 Sol: 85.6 (#9), Llama 4 Scout: 19.6 (#286)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 100% | 7.8% |
| LMArena Math | 1474 | 1287 |
| FrontierMath (Tiers 1-3) | 89.1% | — |
| FrontierMath Tier 4 | 82.9% | — |
| ProofBench | 83% | — |
| Omni-MATH | — | 37.3% |
| MATH Level 5 | — | 62.3% |
| FrontierMath (Feb 2025 set) | — | 0% |
| FrontierMath Erdős | 0% | — |
Knowledge GPT-5.6 Sol leads
GPT-5.6 Sol: 64.3 (#18), Llama 4 Scout: 31.9 (#217)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| GPQA Diamond | 93.5% | 51.8% |
| Vectara Hallucination Rate | 12.4% | 7.7% |
| LMArena Expert | 1516 | 1235 |
| SimpleQA Verified | 69.7% | — |
| MMLU-Pro | — | 74.2% |
| GPQA (HELM) | — | 50.7% |
Multimodal GPT-5.6 Sol leads
GPT-5.6 Sol: 48.6 (#9), Llama 4 Scout: 32.2 (#102)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| LMArena Vision | 1281 | 1118 |
| Blueprint-Bench 2 | 33.6% | — |
| Furniture Assembly | 56.7% | — |
| LMArena Document | 1483 | — |
| SpatialViz-Bench | — | 34.2% |
Multilingual GPT-5.6 Sol leads
GPT-5.6 Sol: 55.3 (#32), Llama 4 Scout: 41.0 (#212)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| LMArena Non-English | 1452 | 1252 |
| LMArena Chinese | 1527 | 1255 |
| LMArena French | 1477 | 1282 |
| LMArena German | 1476 | 1272 |
| LMArena Japanese | 1471 | 1206 |
| LMArena Korean | 1442 | 1207 |
| LMArena Russian | 1468 | 1263 |
| LMArena Spanish | 1441 | 1278 |
Instruction Following GPT-5.6 Sol leads
GPT-5.6 Sol: 77.7 (#16), Llama 4 Scout: 65.8 (#217)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| LMArena Instruction Following | 1482 | 1248 |
| IFEval | — | 81.8% |
Long Context GPT-5.6 Sol leads
GPT-5.6 Sol: 45.4 (#42), Llama 4 Scout: 27.5 (#294)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| LMArena Longer Query | 1480 | 1265 |
| Fiction.LiveBench | — | 36% |
Writing & Preference GPT-5.6 Sol leads
GPT-5.6 Sol: 73.3 (#12), Llama 4 Scout: 37.0 (#261)
| Benchmark | GPT-5.6 Sol | Llama 4 Scout |
|---|---|---|
| LMArena Text | 1457 | 1279 |
| LMArena Creative Writing | 1448 | 1249 |
| EQ-Bench Creative Writing | 1972 | 783 |
| LMArena Multi-Turn | 1460 | 1280 |
| WildBench | — | 78% |
| EQ-Bench 4 | 1250 | — |
Frequently asked questions
Is GPT-5.6 Sol better than Llama 4 Scout?
GPT-5.6 Sol is the stronger model overall, scoring 65.0 to 27.7 on the Noometry Index. Llama 4 Scout costs 53× less per token, which makes it the better buy when GPT-5.6 Sol's lead doesn't matter for your workload.
Which is cheaper, GPT-5.6 Sol or Llama 4 Scout?
Llama 4 Scout is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; GPT-5.6 Sol lists at $4 and $20.
Is GPT-5.6 Sol or Llama 4 Scout better for coding?
GPT-5.6 Sol scores higher on coding benchmarks: 65.1 versus 20.2 in the Noometry coding category.
Which has the bigger context window?
GPT-5.6 Sol does, with 1.05M tokens against 128K.
How many benchmarks do GPT-5.6 Sol and Llama 4 Scout share?
30 benchmarks have published results for both models. GPT-5.6 Sol has 65 scored results on Noometry and Llama 4 Scout has 43.