Model comparison

Seed 2.0 Pro vs Gemini 2.5 Flash-Lite

Seed 2.0 Pro is the stronger model overall, scoring 42.5 to 36.4 on the Noometry Index. Gemini 2.5 Flash-Lite costs 6.4× less per token, which makes it the better buy when Seed 2.0 Pro's lead doesn't matter for your workload.

Last verified October 10, 2026. 18 shared benchmarks.

Seed 2.0 Pro

ByteDance Seed

42.5

Rank #97 Confirmed

Gemini 2.5 Flash-Lite

Google

36.4

Rank #208 Confirmed

Summary

They share 18 benchmarks with published results for both. Seed 2.0 Pro scores higher in 9 categories and Gemini 2.5 Flash-Lite in 0 categories; 9 gaps are clear of the uncertainty.
The widest gap is in multimodal, where Seed 2.0 Pro leads 40.8 to 28.6.
Gemini 2.5 Flash-Lite is cheaper at $0.10 / $0.40 per million input/output tokens, against $0.50 / $3 for Seed 2.0 Pro.
Gemini 2.5 Flash-Lite accepts more context: 1.05M tokens versus 256K.

Side by side

Seed 2.0 Pro and Gemini 2.5 Flash-Lite specifications
	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
Provider	ByteDance Seed	Google
Noometry Index	42.5	36.4
Released	2026-02-14	2025-06-17
Weights	Proprietary	Proprietary
Context window	256K	1.05M
Max output	128K	66K
Input $ / M tokens	$0.50	$0.10
Output $ / M tokens	$3	$0.40
Results tracked	20	33

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Category by category

Coding Seed 2.0 Pro leads

Seed 2.0 Pro: 42.9 (#84), Gemini 2.5 Flash-Lite: 38.0 (#167)

Coding benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Coding	1472	1373
WeirdML	—	35.2%
ALE-Bench	—	325.9

Agentic & Tool Use Not comparable

Seed 2.0 Pro: —, Gemini 2.5 Flash-Lite: 27.8 (#89)

Agentic & Tool Use benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
Berkeley Function Calling Leaderboard	—	36.9%

Reasoning Seed 2.0 Pro leads

Seed 2.0 Pro: 23.1 (#167), Gemini 2.5 Flash-Lite: 21.5 (#196)

Reasoning benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Hard Prompts	1453	1377
Kagi LLM Benchmark	—	40.5%
NYT Connections (extended)	28.4%	—
Thematic Generalization	57.1%	—
DTBench	—	62.8%
LMCA	—	18.1%
Epoch Capabilities Index	—	133.93

Math Seed 2.0 Pro leads

Seed 2.0 Pro: 36.5 (#110), Gemini 2.5 Flash-Lite: 35.5 (#144)

Math benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Math	1440	1373
Omni-MATH	—	48%

Knowledge Seed 2.0 Pro leads

Seed 2.0 Pro: 39.6 (#119), Gemini 2.5 Flash-Lite: 32.1 (#206)

Knowledge benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Expert	1440	1373
MMLU-Pro	—	53.7%
Vectara Hallucination Rate	—	3.3%
GPQA (HELM)	—	30.9%

Multimodal Seed 2.0 Pro leads

Seed 2.0 Pro: 40.8 (#34), Gemini 2.5 Flash-Lite: 28.6 (#109)

Multimodal benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Vision	1275	1198
VPCT	—	30%

Multilingual Seed 2.0 Pro leads

Seed 2.0 Pro: 54.8 (#37), Gemini 2.5 Flash-Lite: 49.5 (#129)

Multilingual benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Non-English	1442	1369
LMArena Chinese	1490	1404
LMArena French	1470	1388
LMArena German	1443	1390
LMArena Japanese	1408	1359
LMArena Korean	1412	1358
LMArena Russian	1450	1373
LMArena Spanish	1460	1396

Instruction Following Seed 2.0 Pro leads

Seed 2.0 Pro: 74.7 (#86), Gemini 2.5 Flash-Lite: 70.2 (#163)

Instruction Following benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Instruction Following	1414	1366
IFEval	—	81%

Long Context Seed 2.0 Pro leads

Seed 2.0 Pro: 43.6 (#85), Gemini 2.5 Flash-Lite: 33.3 (#257)

Long Context benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Longer Query	1428	1373
Fiction.LiveBench	—	47.2%

Writing & Preference Seed 2.0 Pro leads

Seed 2.0 Pro: 63.0 (#66), Gemini 2.5 Flash-Lite: 57.0 (#130)

Writing & Preference benchmarks
Benchmark	Seed 2.0 Pro	Gemini 2.5 Flash-Lite
LMArena Text	1448	1379
LMArena Creative Writing	1406	1366
LMArena Multi-Turn	1441	1367
WildBench	—	81.8%

Frequently asked questions

Is Seed 2.0 Pro better than Gemini 2.5 Flash-Lite?

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

Gemini 2.5 Flash-Lite is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Seed 2.0 Pro lists at $0.50 and $3.

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

Seed 2.0 Pro scores higher on coding benchmarks: 42.9 versus 38.0 in the Noometry coding category.

Which has the bigger context window?

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

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

18 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and Gemini 2.5 Flash-Lite has 33.