Model comparison
Seed 2.0 Pro vs o1
Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 40.9 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. Seed 2.0 Pro scores higher in 4 categories and o1 in 5 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Seed 2.0 Pro leads 62.9 to 55.6.
- Seed 2.0 Pro is cheaper at $0.50 / $3 per million input/output tokens, against $15 / $60 for o1.
- Seed 2.0 Pro accepts more context: 256K tokens versus 200K.
Side by side
| Seed 2.0 Pro | o1 | |
|---|---|---|
| Provider | ByteDance Seed | OpenAI |
| Noometry Index | 43.2 | 40.9 |
| Released | 2026-02-14 | 2024-09-12 |
| Weights | Proprietary | Proprietary |
| Context window | 256K | 200K |
| Max output | 128K | 100K |
| Input $ / M tokens | $0.50 | $15 |
| Output $ / M tokens | $3 | $60 |
| Results tracked | 20 | 52 |
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Category by category
Coding o1 leads
Seed 2.0 Pro: 43.5 (#86), o1: 46.1 (#70)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Coding | 1472 | 1367 |
| Aider Polyglot | — | 61.7% |
| WeirdML | — | 47.6% |
| LiveBench Coding | — | 69.7% |
| CadEval | — | 56% |
| HumanEval+ | — | 89% |
| MBPP+ | — | 80.2% |
Agentic & Tool Use Not comparable
Seed 2.0 Pro: —, o1: 24.6 (#117)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| Cybench | — | 10% |
| METR Time Horizons | — | 51.1% |
Reasoning o1 leads
Seed 2.0 Pro: 24.1 (#165), o1: 27.9 (#111)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Hard Prompts | 1453 | 1371 |
| SimpleBench | — | 41.7% |
| NYT Connections (extended) | 28.4% | — |
| ARC-AGI-1 | — | 30.7% |
| Chess Puzzles | — | 15% |
| EnigmaEval | — | 5.7% |
| Thematic Generalization | 57.1% | — |
| LiveBench Reasoning | — | 91.6% |
| DTBench | — | 74.7% |
| LiveBench Data Analysis | — | 65.5% |
| LMCA | — | 22.3% |
| Epoch Capabilities Index | — | 141.91 |
| LiveBench | — | 75.7% |
Math Seed 2.0 Pro leads
Seed 2.0 Pro: 39.3 (#108), o1: 36.1 (#175)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Math | 1439 | 1388 |
| FrontierMath (Tiers 1-3) | — | 14.7% |
| OTIS Mock AIME 2024-2025 | — | 73.3% |
| LiveBench Math | — | 80.3% |
| MATH Level 5 | — | 94.7% |
| FrontierMath (Feb 2025 set) | — | 9.3% |
Knowledge o1 leads
Seed 2.0 Pro: 40.2 (#122), o1: 41.5 (#110)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Expert | 1440 | 1361 |
| GPQA Diamond | — | 76.8% |
| Humanity's Last Exam | — | 8% |
| SimpleQA Verified | — | 41.1% |
| Confabulations | — | 11.7% |
Multimodal Seed 2.0 Pro leads
Seed 2.0 Pro: 41.5 (#35), o1: 34.2 (#93)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Vision | 1274 | 1168 |
| GeoBench | — | 80% |
| VPCT | — | 37% |
| SpatialViz-Bench | — | 41.4% |
Multilingual Seed 2.0 Pro leads
Seed 2.0 Pro: 54.5 (#39), o1: 48.6 (#142)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Non-English | 1441 | 1358 |
| LMArena Chinese | 1489 | 1394 |
| LMArena French | 1471 | 1344 |
| LMArena German | 1442 | 1337 |
| LMArena Japanese | 1408 | 1346 |
| LMArena Korean | 1411 | 1396 |
| LMArena Russian | 1449 | 1356 |
| LMArena Spanish | 1460 | 1345 |
Instruction Following Too close to call
Seed 2.0 Pro: 74.5 (#91), o1: 74.8 (#86)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Instruction Following | 1414 | 1367 |
| LiveBench Instruction Following | — | 81.5% |
Long Context o1 leads
Seed 2.0 Pro: 43.6 (#90), o1: 50.3 (#9)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Longer Query | 1428 | 1378 |
| Fiction.LiveBench | — | 83.3% |
Writing & Preference Seed 2.0 Pro leads
Seed 2.0 Pro: 62.9 (#69), o1: 55.6 (#144)
| Benchmark | Seed 2.0 Pro | o1 |
|---|---|---|
| LMArena Text | 1448 | 1366 |
| LMArena Creative Writing | 1406 | 1348 |
| LMArena Multi-Turn | 1441 | 1369 |
| Short-Story Creative Writing | — | 70.2% |
| LiveBench Language | — | 65.4% |
Frequently asked questions
Is Seed 2.0 Pro better than o1?
Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 40.9 on the Noometry Index.
Which is cheaper, Seed 2.0 Pro or o1?
Seed 2.0 Pro is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; o1 lists at $15 and $60.
Is Seed 2.0 Pro or o1 better for coding?
o1 scores higher on coding benchmarks: 46.1 versus 43.5 in the Noometry coding category.
Which has the bigger context window?
Seed 2.0 Pro does, with 256K tokens against 200K.
How many benchmarks do Seed 2.0 Pro and o1 share?
18 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and o1 has 52.