# Seed 2.0 Pro vs Mercury 2

> Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 39.1 on the Noometry Index. Mercury 2 costs 3.0× less per token, which makes it the better buy when Seed 2.0 Pro's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/dola-seed-2-0-pro-vs-mercury-2
- Last updated: 2026-10-12
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. Seed 2.0 Pro scores higher in 7 categories and Mercury 2 in 0 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in coding, where Seed 2.0 Pro leads 43.5 to 33.5.
- Mercury 2 is cheaper at $0.25 / $0.75 per million input/output tokens, against $0.50 / $3 for Seed 2.0 Pro.
- Seed 2.0 Pro accepts more context: 256K tokens versus 128K.

## Snapshot

| | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| Provider | ByteDance Seed | Inception |
| Noometry Index | 43.2 | 39.1 |
| Rank | 96 | 175 |
| Context | 256K | 128K |
| Input $/M | $0.50 | $0.25 |
| Output $/M | $3 | $0.75 |
| Weights | Proprietary | Proprietary |

## Coding

- Seed 2.0 Pro: 43.5 (#86)
- Mercury 2: 33.5 (#255)

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Coding | 1472 | 1391 |
| LMArena WebDev | — | 1171 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |

## Reasoning

- Seed 2.0 Pro: 24.1 (#165)
- Mercury 2: 23.8 (#170)

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 1453 | 1362 |
| NYT Connections (extended) | 28.4% | — |
| CritPt | — | 0.8% |
| Thematic Generalization | 57.1% | — |

## Math

- Seed 2.0 Pro: 39.3 (#108)
- Mercury 2: —

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Math | 1439 | — |

## Knowledge

- Seed 2.0 Pro: 40.2 (#122)
- Mercury 2: 36.2 (#172)

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Expert | 1440 | 1358 |
| Vectara Hallucination Rate | — | 12.3% |

## Multimodal

- Seed 2.0 Pro: 41.5 (#35)
- Mercury 2: —

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Vision | 1274 | — |

## Multilingual

- Seed 2.0 Pro: 54.5 (#39)
- Mercury 2: 46.6 (#157)

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1441 | 1331 |
| LMArena Chinese | 1489 | 1417 |
| LMArena Russian | 1449 | 1304 |
| LMArena French | 1471 | — |
| LMArena German | 1442 | — |
| LMArena Japanese | 1408 | — |
| LMArena Korean | 1411 | — |
| LMArena Spanish | 1460 | — |

## Instruction Following

- Seed 2.0 Pro: 74.5 (#91)
- Mercury 2: 70.2 (#165)

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1414 | 1329 |

## Long Context

- Seed 2.0 Pro: 43.6 (#90)
- Mercury 2: 40.5 (#154)

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1428 | 1330 |

## Writing & Preference

- Seed 2.0 Pro: 62.9 (#69)
- Mercury 2: 53.8 (#155)

| Benchmark | Seed 2.0 Pro | Mercury 2 |
|---|---|---|
| LMArena Text | 1448 | 1355 |
| LMArena Creative Writing | 1406 | 1289 |
| LMArena Multi-Turn | 1441 | 1358 |

## FAQ

### Is Seed 2.0 Pro better than Mercury 2?

Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 39.1 on the Noometry Index. Mercury 2 costs 3.0× 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 Mercury 2?

Mercury 2 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; Seed 2.0 Pro lists at $0.50 and $3.

### Is Seed 2.0 Pro or Mercury 2 better for coding?

Seed 2.0 Pro scores higher on coding benchmarks: 43.5 versus 33.5 in the Noometry coding category.

### Which has the bigger context window?

Seed 2.0 Pro does, with 256K tokens against 128K.

### How many benchmarks do Seed 2.0 Pro and Mercury 2 share?

11 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and Mercury 2 has 17.