# Seed 2.0 Pro vs Gemini 2.5 Flash

> Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 39.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/dola-seed-2-0-pro-vs-gemini-2-5-flash
- Last updated: 2026-10-12
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Seed 2.0 Pro scores higher in 5 categories and Gemini 2.5 Flash in 4 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Seed 2.0 Pro leads 62.9 to 53.8.
- Gemini 2.5 Flash is cheaper at $0.30 / $2.50 per million input/output tokens, against $0.50 / $3 for Seed 2.0 Pro.
- Gemini 2.5 Flash accepts more context: 1.05M tokens versus 256K.

## Snapshot

| | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| Provider | ByteDance Seed | Google |
| Noometry Index | 43.2 | 39.3 |
| Rank | 96 | 170 |
| Context | 256K | 1.05M |
| Input $/M | $0.50 | $0.30 |
| Output $/M | $3 | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Seed 2.0 Pro: 43.5 (#86)
- Gemini 2.5 Flash: 35.8 (#220)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Coding | 1472 | 1424 |
| SWE-bench Verified (bash only) | — | 28.7% |
| Aider Polyglot | — | 55.1% |
| WeirdML | — | 41.9% |
| ALE-Bench | — | 661.88 |

## Agentic & Tool Use

- Seed 2.0 Pro: —
- Gemini 2.5 Flash: 30.8 (#74)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| Terminal-Bench | — | 17.1% |
| Berkeley Function Calling Leaderboard | — | 56.2% |
| TheAgentCompany | — | 41.1% |
| BALROG | — | 33.5% |
| Vending-Bench 2 | — | 548.84 |

## Reasoning

- Seed 2.0 Pro: 24.1 (#165)
- Gemini 2.5 Flash: 18.1 (#286)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1453 | 1422 |
| ARC-AGI-2 | — | 2.5% |
| SimpleBench | — | 41.2% |
| Kagi LLM Benchmark | — | 56.8% |
| NYT Connections (extended) | 28.4% | — |
| ARC-AGI-1 | — | 33.3% |
| CritPt | — | 1.1% |
| EnigmaEval | — | 2.7% |
| Thematic Generalization | 57.1% | — |
| DTBench | — | 76.5% |
| LMCA | — | 27.5% |
| Epoch Capabilities Index | — | 143.03 |
| ForecastBench | — | 60.6 |

## Math

- Seed 2.0 Pro: 39.3 (#108)
- Gemini 2.5 Flash: 39.9 (#98)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Math | 1439 | 1415 |
| OTIS Mock AIME 2024-2025 | — | 73.1% |
| Omni-MATH | — | 38.5% |
| FrontierMath (Feb 2025 set) | — | 4.8% |
| FrontierMath Tier 4 (v1) | — | 4.2% |

## Knowledge

- Seed 2.0 Pro: 40.2 (#122)
- Gemini 2.5 Flash: 36.4 (#168)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Expert | 1440 | 1426 |
| Humanity's Last Exam | — | 12.1% |
| MMLU-Pro | — | 63.9% |
| Confabulations | — | 16.8% |
| Vectara Hallucination Rate | — | 7.8% |
| GPQA (HELM) | — | 39% |

## Multimodal

- Seed 2.0 Pro: 41.5 (#35)
- Gemini 2.5 Flash: 41.8 (#32)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Vision | 1274 | 1253 |
| GeoBench | — | 76% |
| VPCT | — | 46.2% |
| SpatialViz-Bench | — | 36.9% |

## Multilingual

- Seed 2.0 Pro: 54.5 (#39)
- Gemini 2.5 Flash: 52.3 (#88)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Non-English | 1441 | 1409 |
| LMArena Chinese | 1489 | 1450 |
| LMArena French | 1471 | 1433 |
| LMArena German | 1442 | 1418 |
| LMArena Japanese | 1408 | 1405 |
| LMArena Korean | 1411 | 1385 |
| LMArena Russian | 1449 | 1415 |
| LMArena Spanish | 1460 | 1421 |

## Instruction Following

- Seed 2.0 Pro: 74.5 (#91)
- Gemini 2.5 Flash: 75.7 (#54)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1414 | 1405 |
| IFEval | — | 89.8% |

## Long Context

- Seed 2.0 Pro: 43.6 (#90)
- Gemini 2.5 Flash: 47.5 (#17)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Longer Query | 1428 | 1419 |
| Fiction.LiveBench | — | 77.8% |

## Writing & Preference

- Seed 2.0 Pro: 62.9 (#69)
- Gemini 2.5 Flash: 53.8 (#157)

| Benchmark | Seed 2.0 Pro | Gemini 2.5 Flash |
|---|---|---|
| LMArena Text | 1448 | 1417 |
| LMArena Creative Writing | 1406 | 1400 |
| LMArena Multi-Turn | 1441 | 1408 |
| Short-Story Creative Writing | — | 76.5% |
| EQ-Bench Creative Writing | — | 1137 |
| WildBench | — | 81.7% |

## FAQ

### Is Seed 2.0 Pro better than Gemini 2.5 Flash?

Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 39.3 on the Noometry Index.

### Which is cheaper, Seed 2.0 Pro or Gemini 2.5 Flash?

Gemini 2.5 Flash is cheaper. It lists at $0.30 per million input tokens and $2.50 per million output tokens; Seed 2.0 Pro lists at $0.50 and $3.

### Is Seed 2.0 Pro or Gemini 2.5 Flash better for coding?

Seed 2.0 Pro scores higher on coding benchmarks: 43.5 versus 35.8 in the Noometry coding category.

### Which has the bigger context window?

Gemini 2.5 Flash does, with 1.05M tokens against 256K.

### How many benchmarks do Seed 2.0 Pro and Gemini 2.5 Flash share?

18 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and Gemini 2.5 Flash has 54.