Model comparison
Seed 2.0 Pro vs o3-pro
Seed 2.0 Pro and o3-pro score almost the same on the Noometry Index (42.5 vs 42.7), so choose on price, context window or the category you care about most.
Last verified . 0 shared benchmarks.
ByteDance SeedSummary
- The widest gap is in long context, where o3-pro leads 72.1 to 43.6.
- Seed 2.0 Pro is cheaper at $0.50 / $3 per million input/output tokens, against $20 / $80 for o3-pro.
- Seed 2.0 Pro accepts more context: 256K tokens versus 200K.
Side by side
| Seed 2.0 Pro | o3-pro | |
|---|---|---|
| Provider | ByteDance Seed | OpenAI |
| Noometry Index | 42.5 | 42.7 |
| Released | 2026-02-14 | 2025-06-10 |
| Weights | Proprietary | Proprietary |
| Context window | 256K | 200K |
| Max output | 128K | 100K |
| Input $ / M tokens | $0.50 | $20 |
| Output $ / M tokens | $3 | $80 |
| Results tracked | 20 | 12 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding o3-pro leads
Seed 2.0 Pro: 42.9 (#84), o3-pro: 55.1 (#22)
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| LMArena Coding | 1472 | — |
Reasoning Too close to call
Seed 2.0 Pro: 23.1 (#167), o3-pro: 24.1 (#152)
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| NYT Connections (extended) | 28.4% | — |
| ARC-AGI-1 | — | 59.3% |
| Thematic Generalization | 57.1% | — |
| LMArena Hard Prompts | 1453 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.43 |
Math Not comparable
Seed 2.0 Pro: 36.5 (#110), o3-pro: —
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| LMArena Math | 1440 | — |
Knowledge Seed 2.0 Pro leads
Seed 2.0 Pro: 39.6 (#119), o3-pro: 29.0 (#234)
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1440 | — |
Multimodal Not comparable
Seed 2.0 Pro: 40.8 (#34), o3-pro: —
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| LMArena Vision | 1275 | — |
Multilingual Not comparable
Seed 2.0 Pro: 54.8 (#37), o3-pro: —
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| LMArena Non-English | 1442 | — |
| LMArena Chinese | 1490 | — |
| LMArena French | 1470 | — |
| LMArena German | 1443 | — |
| LMArena Japanese | 1408 | — |
| LMArena Korean | 1412 | — |
| LMArena Russian | 1450 | — |
| LMArena Spanish | 1460 | — |
Instruction Following Not comparable
Seed 2.0 Pro: 74.7 (#86), o3-pro: —
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1414 | — |
Long Context o3-pro leads
Seed 2.0 Pro: 43.6 (#85), o3-pro: 72.1 (#1)
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1428 | — |
Writing & Preference Seed 2.0 Pro leads
Seed 2.0 Pro: 63.0 (#66), o3-pro: 57.1 (#128)
| Benchmark | Seed 2.0 Pro | o3-pro |
|---|---|---|
| LMArena Text | 1448 | — |
| LMArena Creative Writing | 1406 | — |
| Short-Story Creative Writing | — | 84.4% |
| LMArena Multi-Turn | 1441 | — |
Frequently asked questions
Is Seed 2.0 Pro better than o3-pro?
Seed 2.0 Pro and o3-pro score almost the same on the Noometry Index (42.5 vs 42.7), so choose on price, context window or the category you care about most.
Which is cheaper, Seed 2.0 Pro or o3-pro?
Seed 2.0 Pro is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; o3-pro lists at $20 and $80.
Is Seed 2.0 Pro or o3-pro better for coding?
o3-pro scores higher on coding benchmarks: 55.1 versus 42.9 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-pro share?
0 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and o3-pro has 12.