The Known Good Updated 8 Oct 2026 Subscribe
DeepSeek: R1 vs Google: Gemini 3 Flash Preview ·DeepSeek vs Google

DeepSeek: R1 vs Google: Gemini 3 Flash Preview — head-to-head comparison

DeepSeek: R1 profile Google: Gemini 3 Flash Preview profile All comparisons
DeepSeek: R1 — DeepSeek
Quality
#22 of 65
75based on 4 of 7 evaluations
Known Good Index
Speed
#343 of 356
22.3
Output tokens per second
Price
#293 of 504
$1.15
Blended per 1M tokens
In $0.70 · Out $2.50
Cache hit price
unranked
—
per 1M tokens
Context
#517 of 550
64k
tokens (~98 pages)
Google: Gemini 3 Flash Preview — Google
Quality
#15 of 65
83based on 4 of 7 evaluations
Known Good Index
Speed
#75 of 356
104.4
Output tokens per second
Price
#288 of 504
$1.12
Blended per 1M tokens
In $0.50 · Out $3.00
Cache hit price
#149 of 384
$0.050
per 1M tokens (−90%)
Context
#83 of 550
1.05M
tokens (~1,600 pages)
Summary

On the Known Good Index, DeepSeek: R1 scores 75 and Google: Gemini 3 Flash Preview scores 83 — a 8-point lead for Google: Gemini 3 Flash Preview. They share 2 published evaluations, with DeepSeek: R1 ahead on 0 and Google: Gemini 3 Flash Preview ahead on 2.

Blended pricing is $1.15 per 1M tokens for DeepSeek: R1 and $1.12 for Google: Gemini 3 Flash Preview, within 10% of each other.

Throughput is 22 tokens per second for DeepSeek: R1 and 104 for Google: Gemini 3 Flash Preview, with time to first token at 1.2s and 1.5s. DeepSeek: R1 accepts 64k tokens of context against 1.05M.

DeepSeek: R1 is open weights under Open weights (unrestricted); Google: Gemini 3 Flash Preview is proprietary. 4 tracked hosts serve one or both.

Generated from tracked data on 8 Oct 2026 · how these comparisons are computed →

At a glance
MetricDeepSeek: R1Google: Gemini 3 Flash Preview
Known Good Index 75 based on 4 of 7 evaluations 83 based on 4 of 7 evaluations
Blended $/1M $1.15 $1.12
Output tok/s 22 104
Context window 64k 1.05M
Providers 2 2
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Quality

Known Good Index and the capability indices, side by side

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: R1Google: Gemini 3 Flash Preview
Known Good Index 75 83
Coding Index — 72
Mathematics Index 74 —
Reasoning Index 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: R1 · marker = Google: Gemini 3 Flash Preview · scores ingested from Epoch AI (CC-BY 4.0)

GPQA Diamond69 / 89
Mock AIME 2024–2553 / 96

Right-hand figures read DeepSeek: R1 / Google: Gemini 3 Flash Preview. DeepSeek: R1 leads on 0 of 2, Google: Gemini 3 Flash Preview on 2.

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: R1Google: Gemini 3 Flash Preview
Text Arena 1,373 —
Text Arena (style controlled) 1,398 —
The Known Good

Price & Cost

Published API pricing by token type

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: R1Google: Gemini 3 Flash Preview
Input $/1M $0.70 $0.50
Output $/1M $2.50 $3.00
Blended $/1M $1.15 $1.12
Cache read $/1M — $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: R1Google: Gemini 3 Flash Preview
Context window 64k 1.05M
Max output tokens 16k 66k
The Known Good

Speed & Latency

Mean throughput and time to first token across hosting providers, over successful measurements from the last 48 hours

Throughput and latency

Means across all tracked providers over successful measurements from the last 48 hours, derived from OpenRouter endpoint telemetry.

MetricDeepSeek: R1Google: Gemini 3 Flash Preview
Output tokens/s 22 104
Time to first token 1.2s 1.5s
The Known Good

Providers

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

4 hosts
Full provider benchmarks →
Provider DeepSeek: R1 blendedDeepSeek: R1 tok/s Google: Gemini 3 Flash Preview blendedGoogle: Gemini 3 Flash Preview tok/s
Novita $1.15 24 — —
Azure · first party $2.60 — — —
Google AI Studio — — $0.56 105
Google · first party — — $0.56 104

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 →