Model comparison
GPT-6.1 Sol vs Nova 2 Lite
GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 39.7 on the Noometry Index. Nova 2 Lite costs 4.7× less per token, which makes it the better buy when GPT-6.1 Sol's lead doesn't matter for your workload.
Last verified . 12 shared benchmarks.
Summary
- They share 12 benchmarks with published results for both. GPT-6.1 Sol scores higher in 9 categories and Nova 2 Lite in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-6.1 Sol leads 93.7 to 37.5.
- Nova 2 Lite is cheaper at $0.30 / $2.50 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
- GPT-6.1 Sol accepts more context: 1.05M tokens versus 1M.
Side by side
| GPT-6.1 Sol | Nova 2 Lite | |
|---|---|---|
| Provider | OpenAI | Amazon |
| Noometry Index | 65.6 | 39.7 |
| Released | 2026-09-29 | 2025-12-01 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 1M |
| Max output | 128K | 64K |
| Input $ / M tokens | $2 | $0.30 |
| Output $ / M tokens | $10 | $2.50 |
| Results tracked | 34 | 19 |
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Category by category
Coding GPT-6.1 Sol leads
GPT-6.1 Sol: 63.2 (#8), Nova 2 Lite: 40.7 (#134)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Coding | 1487 | 1385 |
| DeepSWE | 75.2% | — |
| FrontierCode | 50.2% | — |
| LMArena WebDev | 1755 | — |
| SciCode | 55.8% | — |
Agentic & Tool Use GPT-6.1 Sol leads
GPT-6.1 Sol: 39.6 (#26), Nova 2 Lite: 24.1 (#121)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| APEX-Agents | 60% | — |
| Berkeley Function Calling Leaderboard | — | 27.1% |
| GDP.pdf | 32% | — |
Reasoning GPT-6.1 Sol leads
GPT-6.1 Sol: 81.9 (#2), Nova 2 Lite: 27.5 (#118)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Hard Prompts | 1466 | 1364 |
| ARC-AGI-2 | 94.2% | — |
| NYT Connections (extended) | 95.5% | — |
| ARC-AGI-1 | 98.5% | — |
| CritPt | 31.7% | — |
| Chess Puzzles | 61% | — |
| EBR-Bench | 54.3% | — |
| Mystery Game Puzzles | 80% | — |
| Epoch Capabilities Index | 166.09 | — |
Math GPT-6.1 Sol leads
GPT-6.1 Sol: 93.7 (#1), Nova 2 Lite: 37.5 (#156)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Math | 1464 | 1359 |
| FrontierMath (Tiers 1-3) | 93.7% | — |
| FrontierMath Tier 4 | 100% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 99% | — |
Knowledge GPT-6.1 Sol leads
GPT-6.1 Sol: 71.8 (#4), Nova 2 Lite: 43.0 (#94)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Expert | 1502 | 1358 |
| GPQA Diamond | 95.4% | — |
| SimpleQA Verified | 73.9% | — |
| Vectara Hallucination Rate | — | 5.1% |
Multimodal Not comparable
GPT-6.1 Sol: 52.7 (#5), Nova 2 Lite: —
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Vision | 1288 | — |
| Furniture Assembly | 80% | — |
Multilingual GPT-6.1 Sol leads
GPT-6.1 Sol: 54.3 (#46), Nova 2 Lite: 47.1 (#153)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Non-English | 1438 | 1337 |
| LMArena Chinese | 1477 | 1364 |
| LMArena Russian | 1455 | 1343 |
| LMArena French | — | 1381 |
| LMArena German | — | 1343 |
| LMArena Japanese | — | 1271 |
| LMArena Korean | — | 1284 |
| LMArena Spanish | — | 1373 |
Instruction Following GPT-6.1 Sol leads
GPT-6.1 Sol: 77.0 (#29), Nova 2 Lite: 70.5 (#161)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Instruction Following | 1468 | 1335 |
Long Context GPT-6.1 Sol leads
GPT-6.1 Sol: 44.9 (#54), Nova 2 Lite: 40.6 (#150)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Longer Query | 1465 | 1335 |
Writing & Preference GPT-6.1 Sol leads
GPT-6.1 Sol: 63.6 (#63), Nova 2 Lite: 53.9 (#154)
| Benchmark | GPT-6.1 Sol | Nova 2 Lite |
|---|---|---|
| LMArena Text | 1447 | 1362 |
| LMArena Creative Writing | 1432 | 1291 |
| LMArena Multi-Turn | 1449 | 1338 |
Frequently asked questions
Is GPT-6.1 Sol better than Nova 2 Lite?
GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 39.7 on the Noometry Index. Nova 2 Lite costs 4.7× 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, GPT-6.1 Sol or Nova 2 Lite?
Nova 2 Lite is cheaper. It lists at $0.30 per million input tokens and $2.50 per million output tokens; GPT-6.1 Sol lists at $2 and $10.
Is GPT-6.1 Sol or Nova 2 Lite better for coding?
GPT-6.1 Sol scores higher on coding benchmarks: 63.2 versus 40.7 in the Noometry coding category.
Which has the bigger context window?
GPT-6.1 Sol does, with 1.05M tokens against 1M.
How many benchmarks do GPT-6.1 Sol and Nova 2 Lite share?
12 benchmarks have published results for both models. GPT-6.1 Sol has 34 scored results on Noometry and Nova 2 Lite has 19.