The Known Good Updated 25 Jul 2026
DeepSeek: DeepSeek V4 Pro vs Google: Gemini 3 Flash Preview ·DeepSeek vs Google

DeepSeek: DeepSeek V4 Pro vs Google: Gemini 3 Flash Preview — head-to-head comparison

DeepSeek: DeepSeek V4 Pro profile Google: Gemini 3 Flash Preview profile All comparisons
DeepSeek: DeepSeek V4 Pro — DeepSeek
Quality
#6 of 61
93based on 3 of 6 evaluations
Known Good Index
Speed
#182 of 316
45.2
Output tokens per second
Price
#145 of 340
$0.54
Blended per 1M tokens
In $0.43 · Out $0.87
Cache hit price
#12 of 206
$0.004
per 1M tokens (−99%)
Context
#25 of 345
1.05M
tokens (~1,600 pages)
Google: Gemini 3 Flash Preview — Google
Quality
#13 of 61
83based on 4 of 6 evaluations
Known Good Index
Speed
#68 of 316
88.9
Output tokens per second
Price
#205 of 340
$1.12
Blended per 1M tokens
In $0.50 · Out $3.00
Cache hit price
#67 of 206
$0.050
per 1M tokens (−90%)
Context
#27 of 345
1.05M
tokens (~1,600 pages)
Summary

On the Known Good Index, DeepSeek: DeepSeek V4 Pro scores 93 and Google: Gemini 3 Flash Preview scores 83 — a 10-point lead for DeepSeek: DeepSeek V4 Pro. They share 3 published evaluations, with DeepSeek: DeepSeek V4 Pro ahead on 3 and Google: Gemini 3 Flash Preview ahead on 0.

Blended pricing is $0.54 per 1M tokens for DeepSeek: DeepSeek V4 Pro and $1.12 for Google: Gemini 3 Flash Preview — DeepSeek: DeepSeek V4 Pro is about 2.1× cheaper.

Throughput is 45 tokens per second for DeepSeek: DeepSeek V4 Pro and 89 for Google: Gemini 3 Flash Preview, with time to first token at 2.0s and 2.0s. DeepSeek: DeepSeek V4 Pro accepts 1.05M tokens of context against 1.05M.

DeepSeek: DeepSeek V4 Pro is open weights under Open weights (unrestricted); Google: Gemini 3 Flash Preview is proprietary. 20 tracked hosts serve one or both.

Generated from tracked data on 25 Jul 2026 · how these comparisons are computed →

At a glance
MetricDeepSeek: DeepSeek V4 ProGoogle: Gemini 3 Flash Preview
Known Good Index 93 based on 3 of 6 evaluations 83 based on 4 of 6 evaluations
Blended $/1M $0.54 $1.12
Output tok/s 45 89
Context window 1.05M 1.05M
Providers 18 2
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Quality

Known Good Index and the capability indices, side by side

IndicesComponents
Index scores

Each index is min-max normalised across tracked models and scaled 0–100 from published evaluations. We do not run these evaluations.

MetricDeepSeek: DeepSeek V4 ProGoogle: Gemini 3 Flash Preview
Known Good Index 93 83
Coding Index 77
Mathematics Index 97 93
Science Index 94 86
Agentic Index 89 77
Openness Index 60 5
The Known Good

Quality Breakdown

Every evaluation both models report a published score for

Evaluations both models report

Bar = DeepSeek: DeepSeek V4 Pro · marker = Google: Gemini 3 Flash Preview · scores ingested from Epoch AI (CC-BY 4.0)

GPQA Diamond90 / 83
MATH / AIME97 / 93
SWE-bench Verified78 / 75

Right-hand figures read DeepSeek: DeepSeek V4 Pro / Google: Gemini 3 Flash Preview. DeepSeek: DeepSeek V4 Pro leads on 3 of 3, Google: Gemini 3 Flash Preview on 0.

The Known Good

Arena Elo

Human preference rating from blind pairwise votes

Arena ratings

Elo from blind pairwise votes, ingested from Arena. Higher is better.

MetricDeepSeek: DeepSeek V4 ProGoogle: Gemini 3 Flash Preview
Text Arena 1,449
Text Arena (style controlled) 1,457
The Known Good

Price & Cost

Published API pricing by token type

Per token typeCache discount
Published pricing

USD per 1M tokens. Blended is a 3:1 input:output mix. Live from OpenRouter, cross-checked against models.dev. Lower is better.

MetricDeepSeek: DeepSeek V4 ProGoogle: Gemini 3 Flash Preview
Input $/1M $0.43 $0.50
Output $/1M $0.87 $3.00
Blended $/1M $0.54 $1.12
Cache read $/1M $0.004 $0.050
The Known Good
We publish blended price rather than cost-per-task. Cost-per-task requires token counts from an evaluation suite we do not run. Blended price is computed from published rates and is fully reproducible — see the pricing methodology.

Context Window

Maximum input accepted and maximum output emitted

Context and output limits

Provider-declared limits, from metadata via models.dev and OpenRouter. Higher is better.

MetricDeepSeek: DeepSeek V4 ProGoogle: Gemini 3 Flash Preview
Context window 1.05M 1.05M
Max output tokens 384k 66k
The Known Good

Speed & Latency

Median throughput and time to first token across hosting providers

Output speedTime to first token
Throughput and latency

Medians across all tracked providers, derived from OpenRouter endpoint telemetry.

MetricDeepSeek: DeepSeek V4 ProGoogle: Gemini 3 Flash Preview
Output tokens/s 45 89
Time to first token 2.0s 2.0s
The Known Good

Providers

Which hosts serve each model, and at what price and speed

20 hosts
Full provider benchmarks →
Provider DeepSeek: DeepSeek V4 Pro blendedDeepSeek: DeepSeek V4 Pro tok/s Google: Gemini 3 Flash Preview blendedGoogle: Gemini 3 Flash Preview tok/s
BaseTen $2.17 110
Fireworks $2.17 66
Novita $1.46 66
DeepInfra $1.62 65
GMICloud $0.85 62
Venice $2.06 61
Baidu · first party $0.78 58
Together $2.17 53
Alibaba · first party $1.77 52
AtlasCloud $2.10 46
Wafer $1.50 45
DeepSeek · first party $0.54 44
SiliconFlow $1.91 41
StreamLake $0.84 41
CoreWeave $2.17 28
Ionstream $1.41 20
DigitalOcean $1.74 6
Parasail $2.17
Google · first party $0.56 85
Google AI Studio $0.56 60

Per-host pricing and telemetry from OpenRouter. A dash means that host does not serve that model.

The Known Good
Sources for this page
Pricing & providers — OpenRouter Metadata — models.dev Benchmarks — Epoch AI (CC-BY 4.0)Elo — Arena Full attribution →