The Known Good Updated 25 Jul 2026
Google: Gemini 3 Flash Preview vs grok-4-0709 ·Google vs xAI

Google: Gemini 3 Flash Preview vs grok-4-0709 — head-to-head comparison

Google: Gemini 3 Flash Preview profile grok-4-0709 profile All comparisons
Google: Gemini 3 Flash Preview — Google
Quality
#13 of 61
83based on 4 of 6 evaluations
Known Good Index
Speed
#71 of 316
88.3
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)
grok-4-0709 — xAI
Quality
#27 of 61
67based on 3 of 6 evaluations
Known Good Index
Speed
unranked
Output tokens per second
Price
unranked
Blended per 1M tokens
Cache hit price
unranked
per 1M tokens
Context
unranked
tokens
Summary

On the Known Good Index, Google: Gemini 3 Flash Preview scores 83 and grok-4-0709 scores 67 — a 16-point lead for Google: Gemini 3 Flash Preview. They share 3 published evaluations, with Google: Gemini 3 Flash Preview ahead on 2 and grok-4-0709 ahead on 1.

Published pricing is tracked for Google: Gemini 3 Flash Preview only, at $1.12 per 1M tokens blended.

Google: Gemini 3 Flash Preview is proprietary; grok-4-0709 is proprietary. 2 tracked hosts serve one or both.

Generated from tracked data on 26 Jul 2026 · how these comparisons are computed →

At a glance
MetricGoogle: Gemini 3 Flash Previewgrok-4-0709
Known Good Index 83 based on 4 of 6 evaluations 67 based on 3 of 6 evaluations
Blended $/1M $1.12
Output tok/s 88
Context window 1.05M
Providers 2 0
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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.

MetricGoogle: Gemini 3 Flash Previewgrok-4-0709
Known Good Index 83 67
Coding Index 77
Mathematics Index 93 84
Science Index 86 91
Agentic Index 77 27
Openness Index 5 5
The Known Good

Quality Breakdown

Every evaluation both models report a published score for

Evaluations both models report

Bar = Google: Gemini 3 Flash Preview · marker = grok-4-0709 · scores ingested from Epoch AI (CC-BY 4.0)

GPQA Diamond83 / 87
MATH / AIME93 / 84
Terminal-Bench64 / 27

Right-hand figures read Google: Gemini 3 Flash Preview / grok-4-0709. Google: Gemini 3 Flash Preview leads on 2 of 3, grok-4-0709 on 1.

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.

MetricGoogle: Gemini 3 Flash Previewgrok-4-0709
Text Arena 1,410
Text Arena (style controlled) 1,410
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.

MetricGoogle: Gemini 3 Flash Previewgrok-4-0709
Input $/1M $0.50
Output $/1M $3.00
Blended $/1M $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.

MetricGoogle: Gemini 3 Flash Previewgrok-4-0709
Context window 1.05M
Max output tokens 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.

MetricGoogle: Gemini 3 Flash Previewgrok-4-0709
Output tokens/s 88
Time to first token 2.0s
The Known Good

Providers

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

2 hosts
Full provider benchmarks →
Provider Google: Gemini 3 Flash Preview blendedGoogle: Gemini 3 Flash Preview tok/s grok-4-0709 blendedgrok-4-0709 tok/s
Google · first party $0.56 91
Google AI Studio $0.56 61

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 →