Model comparison
Seed 2.0 Pro vs o3-mini
Seed 2.0 Pro is the stronger model overall, scoring 42.5 to 36.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
ByteDance SeedSummary
- They share 17 benchmarks with published results for both. Seed 2.0 Pro scores higher in 7 categories and o3-mini in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Seed 2.0 Pro leads 63.0 to 50.4.
- Seed 2.0 Pro is cheaper at $0.50 / $3 per million input/output tokens, against $1.10 / $4.40 for o3-mini.
- Seed 2.0 Pro accepts more context: 256K tokens versus 200K.
Side by side
| Seed 2.0 Pro | o3-mini | |
|---|---|---|
| Provider | ByteDance Seed | OpenAI |
| Noometry Index | 42.5 | 36.7 |
| Released | 2026-02-14 | 2024-12-20 |
| Weights | Proprietary | Proprietary |
| Context window | 256K | 200K |
| Max output | 128K | 100K |
| Input $ / M tokens | $0.50 | $1.10 |
| Output $ / M tokens | $3 | $4.40 |
| Results tracked | 20 | 51 |
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Category by category
Coding Seed 2.0 Pro leads
Seed 2.0 Pro: 42.9 (#84), o3-mini: 41.4 (#116)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Coding | 1472 | 1378 |
| Aider Polyglot | — | 60.4% |
| SciCode | — | 39.8% |
| GSO | — | 1.3% |
| WeirdML | — | 43.7% |
| LiveBench Coding | — | 82.7% |
| CadEval | — | 54% |
Agentic & Tool Use Not comparable
Seed 2.0 Pro: —, o3-mini: 29.3 (#79)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| Cybench | — | 22.5% |
Reasoning Seed 2.0 Pro leads
Seed 2.0 Pro: 23.1 (#167), o3-mini: 16.3 (#295)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Hard Prompts | 1453 | 1366 |
| ARC-AGI-2 | — | 3% |
| SimpleBench | — | 22.8% |
| NYT Connections (extended) | 28.4% | — |
| ARC-AGI-1 | — | 34.5% |
| CritPt | — | 0.3% |
| Chess Puzzles | — | 17% |
| Thematic Generalization | 57.1% | — |
| LiveBench Reasoning | — | 89.6% |
| Mystery Game Puzzles | — | 7% |
| DTBench | — | 68.8% |
| LiveBench Data Analysis | — | 70.6% |
| LMCA | — | 19% |
| Epoch Capabilities Index | — | 140.35 |
| ForecastBench | — | 59.6 |
| LiveBench | — | 75.9% |
Math Seed 2.0 Pro leads
Seed 2.0 Pro: 36.5 (#110), o3-mini: 27.6 (#236)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Math | 1440 | 1396 |
| FrontierMath (Tiers 1-3) | — | 18.6% |
| FrontierMath Tier 4 | — | 0% |
| OTIS Mock AIME 2024-2025 | — | 76.9% |
| LiveBench Math | — | 77.3% |
| MATH Level 5 | — | 96.5% |
| FrontierMath (Feb 2025 set) | — | 12.4% |
| FrontierMath Tier 4 (v1) | — | 4.2% |
Knowledge Seed 2.0 Pro leads
Seed 2.0 Pro: 39.6 (#119), o3-mini: 38.3 (#135)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Expert | 1440 | 1364 |
| GPQA Diamond | — | 77% |
| SimpleQA Verified | — | 15.3% |
| Confabulations | — | 17.9% |
Multimodal Not comparable
Seed 2.0 Pro: 40.8 (#34), o3-mini: —
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Vision | 1275 | — |
Multilingual Seed 2.0 Pro leads
Seed 2.0 Pro: 54.8 (#37), o3-mini: 45.9 (#159)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Non-English | 1442 | 1319 |
| LMArena Chinese | 1490 | 1379 |
| LMArena French | 1470 | 1333 |
| LMArena German | 1443 | 1303 |
| LMArena Japanese | 1408 | 1286 |
| LMArena Korean | 1412 | 1314 |
| LMArena Russian | 1450 | 1304 |
| LMArena Spanish | 1460 | 1321 |
Instruction Following Too close to call
Seed 2.0 Pro: 74.7 (#86), o3-mini: 75.3 (#67)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Instruction Following | 1414 | 1338 |
| LiveBench Instruction Following | — | 84.4% |
Long Context Seed 2.0 Pro leads
Seed 2.0 Pro: 43.6 (#85), o3-mini: 33.8 (#251)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Longer Query | 1428 | 1343 |
| Fiction.LiveBench | — | 50% |
Writing & Preference Seed 2.0 Pro leads
Seed 2.0 Pro: 63.0 (#66), o3-mini: 50.4 (#177)
| Benchmark | Seed 2.0 Pro | o3-mini |
|---|---|---|
| LMArena Text | 1448 | 1337 |
| LMArena Creative Writing | 1406 | 1286 |
| LMArena Multi-Turn | 1441 | 1320 |
| Short-Story Creative Writing | — | 61.7% |
| LiveBench Language | — | 50.7% |
Frequently asked questions
Is Seed 2.0 Pro better than o3-mini?
Seed 2.0 Pro is the stronger model overall, scoring 42.5 to 36.7 on the Noometry Index.
Which is cheaper, Seed 2.0 Pro or o3-mini?
Seed 2.0 Pro is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; o3-mini lists at $1.10 and $4.40.
Is Seed 2.0 Pro or o3-mini better for coding?
Seed 2.0 Pro scores higher on coding benchmarks: 42.9 versus 41.4 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 o3-mini share?
17 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and o3-mini has 51.