Model comparison
Seed 2.0 Pro vs Trinity Large Thinking
Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 38.6 on the Noometry Index. Trinity Large Thinking costs 2.9× less per token, which makes it the better buy when Seed 2.0 Pro's lead doesn't matter for your workload.
Last verified . 19 shared benchmarks.
ByteDance Seed
Arcee AISummary
- They share 19 benchmarks with published results for both. Seed 2.0 Pro scores higher in 7 categories and Trinity Large Thinking in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in coding, where Seed 2.0 Pro leads 43.5 to 34.1.
- The biggest single-benchmark swing is Thematic Generalization: 57.1% for Seed 2.0 Pro and 41.6% for Trinity Large Thinking.
- Trinity Large Thinking is cheaper at $0.25 / $0.80 per million input/output tokens, against $0.50 / $3 for Seed 2.0 Pro.
- Trinity Large Thinking accepts more context: 262K tokens versus 256K.
- Trinity Large Thinking has downloadable open weights; the other is API-only.
Side by side
| Seed 2.0 Pro | Trinity Large Thinking | |
|---|---|---|
| Provider | ByteDance Seed | Arcee AI |
| Noometry Index | 43.2 | 38.6 |
| Released | 2026-02-14 | 2026-04-01 |
| Weights | Proprietary | Open |
| Context window | 256K | 262K |
| Max output | 128K | 80K |
| Input $ / M tokens | $0.50 | $0.25 |
| Output $ / M tokens | $3 | $0.80 |
| Results tracked | 20 | 24 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Seed 2.0 Pro leads
Seed 2.0 Pro: 43.5 (#86), Trinity Large Thinking: 34.1 (#244)
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| LMArena Coding | 1472 | 1381 |
| LMArena WebDev | — | 1238 |
| SciCode | — | 36.1% |
Reasoning Seed 2.0 Pro leads
Seed 2.0 Pro: 24.1 (#165), Trinity Large Thinking: 16.9 (#298)
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| NYT Connections (extended) | 28.4% | 16.5% |
| Thematic Generalization | 57.1% | 41.6% |
| LMArena Hard Prompts | 1453 | 1350 |
| CritPt | — | 0.9% |
| Surface Evolver Bench | — | 15.6% |
Math Seed 2.0 Pro leads
Seed 2.0 Pro: 39.3 (#108), Trinity Large Thinking: 37.6 (#149)
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| LMArena Math | 1439 | 1366 |
Knowledge Too close to call
Seed 2.0 Pro: 40.2 (#122), Trinity Large Thinking: 40.9 (#113)
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| LMArena Expert | 1440 | 1360 |
| Vectara Hallucination Rate | — | 6.9% |
Multimodal Not comparable
Seed 2.0 Pro: 41.5 (#35), Trinity Large Thinking: —
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| LMArena Vision | 1274 | — |
Multilingual Seed 2.0 Pro leads
Seed 2.0 Pro: 54.5 (#39), Trinity Large Thinking: 46.2 (#160)
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| LMArena Non-English | 1441 | 1325 |
| LMArena Chinese | 1489 | 1373 |
| LMArena French | 1471 | 1374 |
| LMArena German | 1442 | 1356 |
| LMArena Japanese | 1408 | 1311 |
| LMArena Korean | 1411 | 1306 |
| LMArena Russian | 1449 | 1337 |
| LMArena Spanish | 1460 | 1357 |
Instruction Following Seed 2.0 Pro leads
Seed 2.0 Pro: 74.5 (#91), Trinity Large Thinking: 70.5 (#162)
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| LMArena Instruction Following | 1414 | 1334 |
Long Context Seed 2.0 Pro leads
Seed 2.0 Pro: 43.6 (#90), Trinity Large Thinking: 41.3 (#144)
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| LMArena Longer Query | 1428 | 1355 |
Writing & Preference Seed 2.0 Pro leads
Seed 2.0 Pro: 62.9 (#69), Trinity Large Thinking: 53.8 (#158)
| Benchmark | Seed 2.0 Pro | Trinity Large Thinking |
|---|---|---|
| LMArena Text | 1448 | 1340 |
| LMArena Creative Writing | 1406 | 1320 |
| LMArena Multi-Turn | 1441 | 1342 |
Frequently asked questions
Is Seed 2.0 Pro better than Trinity Large Thinking?
Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 38.6 on the Noometry Index. Trinity Large Thinking costs 2.9× less per token, which makes it the better buy when Seed 2.0 Pro's lead doesn't matter for your workload.
Which is cheaper, Seed 2.0 Pro or Trinity Large Thinking?
Trinity Large Thinking is cheaper. It lists at $0.25 per million input tokens and $0.80 per million output tokens; Seed 2.0 Pro lists at $0.50 and $3.
Is Seed 2.0 Pro or Trinity Large Thinking better for coding?
Seed 2.0 Pro scores higher on coding benchmarks: 43.5 versus 34.1 in the Noometry coding category.
Which has the bigger context window?
Trinity Large Thinking does, with 262K tokens against 256K.
How many benchmarks do Seed 2.0 Pro and Trinity Large Thinking share?
19 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and Trinity Large Thinking has 24.