Model comparison
Gemma 3 4B vs GPT-6.1 Sol
GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 28.1 on the Noometry Index. Gemma 3 4B costs 80× less per token, which makes it the better buy when GPT-6.1 Sol's lead doesn't matter for your workload.
Last verified . 15 shared benchmarks.
GoogleSummary
- They share 15 benchmarks with published results for both. Gemma 3 4B 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 16.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 7.5% for Gemma 3 4B and 100% for GPT-6.1 Sol.
- Gemma 3 4B is cheaper at $0.04 / $0.08 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
- GPT-6.1 Sol accepts more context: 1.05M tokens versus 131K.
- Gemma 3 4B has downloadable open weights; the other is API-only.
Side by side
| Gemma 3 4B | GPT-6.1 Sol | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 28.1 | 65.6 |
| Released | 2025-03-12 | 2026-09-29 |
| Weights | Open | Proprietary |
| Context window | 131K | 1.05M |
| Max output | 4K | 128K |
| Input $ / M tokens | $0.04 | $2 |
| Output $ / M tokens | $0.08 | $10 |
| Results tracked | 22 | 34 |
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Category by category
Coding GPT-6.1 Sol leads
Gemma 3 4B: 35.9 (#215), GPT-6.1 Sol: 63.2 (#8)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| LMArena Coding | 1230 | 1487 |
| DeepSWE | — | 75.2% |
| FrontierCode | — | 50.2% |
| LMArena WebDev | — | 1755 |
| SciCode | — | 55.8% |
Agentic & Tool Use GPT-6.1 Sol leads
Gemma 3 4B: 20.9 (#142), GPT-6.1 Sol: 39.6 (#26)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| APEX-Agents | — | 60% |
| Berkeley Function Calling Leaderboard | 19.6% | — |
| GDP.pdf | — | 32% |
Reasoning GPT-6.1 Sol leads
Gemma 3 4B: 13.2 (#335), GPT-6.1 Sol: 81.9 (#2)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| Chess Puzzles | 0% | 61% |
| LMArena Hard Prompts | 1253 | 1466 |
| Epoch Capabilities Index | 116.02 | 166.09 |
| ARC-AGI-2 | — | 94.2% |
| Kagi LLM Benchmark | 25.2% | — |
| NYT Connections (extended) | — | 95.5% |
| ARC-AGI-1 | — | 98.5% |
| CritPt | — | 31.7% |
| EBR-Bench | — | 54.3% |
| Mystery Game Puzzles | — | 80% |
| DTBench | 50.9% | — |
| LMCA | 2.8% | — |
Math GPT-6.1 Sol leads
Gemma 3 4B: 16.8 (#292), GPT-6.1 Sol: 93.7 (#1)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 7.5% | 100% |
| LMArena Math | 1239 | 1464 |
| FrontierMath (Tiers 1-3) | — | 93.7% |
| FrontierMath Tier 4 | — | 100% |
| ProofBench | — | 99% |
Knowledge GPT-6.1 Sol leads
Gemma 3 4B: 11.8 (#299), GPT-6.1 Sol: 71.8 (#4)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| GPQA Diamond | 23.2% | 95.4% |
| LMArena Expert | 1223 | 1502 |
| SimpleQA Verified | — | 73.9% |
| Vectara Hallucination Rate | 6.4% | — |
Multimodal Not comparable
Gemma 3 4B: —, GPT-6.1 Sol: 52.7 (#5)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| LMArena Vision | — | 1288 |
| Furniture Assembly | — | 80% |
Multilingual GPT-6.1 Sol leads
Gemma 3 4B: 42.5 (#194), GPT-6.1 Sol: 54.3 (#46)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| LMArena Non-English | 1273 | 1438 |
| LMArena Russian | 1294 | 1455 |
| LMArena Chinese | — | 1477 |
| LMArena German | 1281 | — |
Instruction Following GPT-6.1 Sol leads
Gemma 3 4B: 65.2 (#225), GPT-6.1 Sol: 77.0 (#29)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| LMArena Instruction Following | 1239 | 1468 |
Long Context GPT-6.1 Sol leads
Gemma 3 4B: 38.7 (#194), GPT-6.1 Sol: 44.9 (#54)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| LMArena Longer Query | 1273 | 1465 |
Writing & Preference GPT-6.1 Sol leads
Gemma 3 4B: 42.0 (#239), GPT-6.1 Sol: 63.6 (#63)
| Benchmark | Gemma 3 4B | GPT-6.1 Sol |
|---|---|---|
| LMArena Text | 1291 | 1447 |
| LMArena Creative Writing | 1271 | 1432 |
| LMArena Multi-Turn | 1255 | 1449 |
| EQ-Bench Creative Writing | 1068 | — |
Frequently asked questions
Is Gemma 3 4B better than GPT-6.1 Sol?
GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 28.1 on the Noometry Index. Gemma 3 4B costs 80× less per token, which makes it the better buy when GPT-6.1 Sol's lead doesn't matter for your workload.
Which is cheaper, Gemma 3 4B or GPT-6.1 Sol?
Gemma 3 4B is cheaper. It lists at $0.04 per million input tokens and $0.08 per million output tokens; GPT-6.1 Sol lists at $2 and $10.
Is Gemma 3 4B or GPT-6.1 Sol better for coding?
GPT-6.1 Sol scores higher on coding benchmarks: 63.2 versus 35.9 in the Noometry coding category.
Which has the bigger context window?
GPT-6.1 Sol does, with 1.05M tokens against 131K.
How many benchmarks do Gemma 3 4B and GPT-6.1 Sol share?
15 benchmarks have published results for both models. Gemma 3 4B has 22 scored results on Noometry and GPT-6.1 Sol has 34.