Pairwise benchmark snapshot · Aug 16, 2026

DeepSeek V3 vs Gemini 3 Flash benchmark

Name: DeepSeek V3 vs Gemini 3 Flash AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares DeepSeek V3 (DeepSeek) and Gemini 3 Flash (Google) using the latest snapshots we have as of Aug 16, 2026. On preference Elo, Gemini 3 Flash is ahead by 185 points (1,495 vs 1,310; seed-bootstrap (Aug 1, 2026)). On SWE-bench coding, Gemini 3 Flash resolves 75.8% versus 48.6% (seed-bootstrap (Aug 1, 2026)). Gemini 3 Flash streams faster (190 tok/s) while DeepSeek V3 is the cheaper output token ($1.03/1M). Gemini 3 Flash has the larger context window (1M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

Share Analysis:

WhatsApp Telegram X / Post LinkedIn Reddit

DeepSeek

DeepSeek V3

Prior DeepSeek flagship. Baseline for v3 vs v4.

Elo 1,310$1.0287/1M out

Google

Gemini 3 Flash

Fast Google frontier-adjacent model. Near-top official SWE-bench at a fraction of Opus price.

Elo 1,495$3/1M out

Swap or Add Any Model to this Matchup

Instant pairwise benchmark recalculation across 400+ LLMs

Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

DeepSeek V3 (2)vsGemini 3 Flash (8)

DeepSeek V3: 2W (20%)Overall: Gemini 3 FlashGemini 3 Flash: 8W (80%)

← DeepSeek V3Gemini 3 Flash →

Gemini 3 Flash (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,310vs1,495

Coding Elo

—vs1,510

SWE-bench

48.6%vs75.8%

LiveBench

55.4%vs66.8%

GPQA Diamond

59.1%vs78.4%

DeepSeek V3: 0WGemini 3 Flash: 5W

Gemini 3 Flash (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

66 tok/svs190 tok/s

Time to first token

380 msvs95 ms

DeepSeek V3: 0WGemini 3 Flash: 2W

DeepSeek V3 (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$1.03/1Mvs$3/1M

Input price

$0.26/1Mvs$0.5/1M

Context window

164kvs1M

DeepSeek V3: 2WGemini 3 Flash: 1W

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect

Percentile 0–100

Dimensional AdvantageGemini 3 Flash 5/6

Preference Elo

Gemini 3 Flash

185 pts advantage

Throughput Speed

Gemini 3 Flash

124 tok/s faster

Price Efficiency

DeepSeek V3

$1.97/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

1,310

EloHigh is better

1,495+14%

Code Elo

High is better

—

Code EloHigh is better

1,510

LiveBench

High is better

55.4%

LiveBenchHigh is better

66.8%+21%

SWE-bench

High is better

48.6%

SWE-benchHigh is better

75.8%+56%

GPQA

High is better

59.1%

GPQAHigh is better

78.4%+33%

TTFT

Low is better

380 ms

TTFTLow is better

95 ms+300%

Speed

High is better

66 tok/s

SpeedHigh is better

190 tok/s+188%

In $

Low is better

+94%$0.26/1M

In $Low is better

$0.5/1M

Out $

Low is better

+192%$1.03/1M

Out $Low is better

$3/1M

Context

High is better

164k

ContextHigh is better

1M+540%

Interactive Simulator

Workload Cost & Savings Calculator

Simulate monthly production API costs based on published $/1M tokens.

Save up to 61% with DeepSeek V3

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

DeepSeek V3$24.44 / mo

In: $9.01Out: $15.43

Gemini 3 Flash$62.50 / mo

In: $17.50Out: $45.00

Estimated Cost Delta

DeepSeek V3 is estimated to save $38.06/month ($457/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
Gemini 3 Flash:Pick Gemini 3 Flash when repo-level coding accuracy is the constraint.
2
DeepSeek V3:Pick DeepSeek V3 when you are optimizing output cost.
3
Gemini 3 Flash:Pick Gemini 3 Flash when time-to-first-token matters more than peak Elo.

Recommended Workload Routing

Repo / coding agentsGemini 3 Flash

Higher SWE-bench (75.8%).

High-volume chatDeepSeek V3

Lower output list price ($1.03/1M).

Voice / low-latency UIGemini 3 Flash

Lower TTFT (95 ms).

Long-document RAGGemini 3 Flash

Larger window (1M).

Screenshots / visionGemini 3 Flash

Gemini 3 Flash is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Gemini 3 Flash	Higher SWE-bench (75.8%).
High-volume chat	DeepSeek V3	Lower output list price ($1.03/1M).
Voice / low-latency UI	Gemini 3 Flash	Lower TTFT (95 ms).
Long-document RAG	Gemini 3 Flash	Larger window (1M).
Screenshots / vision	Gemini 3 Flash	Gemini 3 Flash is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news

launchMar 16, 2026

Gemini 3 Flash: near-top official SWE-bench at a fraction of Opus

March 2026 speed SKU. Still a useful cheap-coding compare even after 3.6/3.7 Flash.

Community Sentiment

Cast Your Matchup Vote

0 total votes

Community Discussions (0)

No comments posted on this matchup yet. Be the first to share an evaluation note!

Share card

The real PNG is generated at /compare/deepseek-v3-vs-gemini-3-flash/opengraph-image for crawlers.

PNG

CompareLLM Matrix

Verified head-to-head card

LIVE

DeepSeek

DeepSeek V3

Elo 1,310

LiveBench55.4%

SWE-bench48.6%

Speed66 tok/s

Output cost$1.03/1M

Google

Gemini 3 Flash

Elo 1,495

LiveBench66.8%

SWE-bench75.8%

Speed190 tok/s

Output cost$3/1M

Frequently Asked Questions

Which is better overall, DeepSeek V3 or Gemini 3 Flash?: Gemini 3 Flash has the higher preference Elo in our latest snapshot (1,495). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, DeepSeek V3 or Gemini 3 Flash?: Gemini 3 Flash leads SWE-bench at 75.8% vs 48.6%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: DeepSeek V3 output tokens are $1.03/1M versus $3/1M. Input prices and retry rates still move the real bill.
Which is faster, DeepSeek V3 or Gemini 3 Flash?: Gemini 3 Flash has the lower time-to-first-token (95 ms vs 380 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?: Gemini 3 Flash accepts 1M tokens versus 164k.
Can I self-host either model?: DeepSeek V3 is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. DeepSeek V3 and Gemini 3 Flash Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All DeepSeek V3 matchups →|All Gemini 3 Flash matchups →

DeepSeek V3 vs DeepSeek Coder V2 (previous deepseek)DeepSeek V3 vs DeepSeek R1 (next deepseek)Gemini 3 Flash vs Gemini 2.5 Flash (previous gemini-flash)Gemini 3 Flash vs Gemini 3.6 Flash (next gemini-flash)Gemini 3 Pro vs Gemini 3 Flash DeepSeek V4 Pro vs Gemini 3 Flash

DeepSeek V3 vs Gemini 3 Flash benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

DeepSeek V3 (2)vsGemini 3 Flash (8)

DeepSeek V3: 2W (20%)Overall: Gemini 3 FlashGemini 3 Flash: 8W (80%)

← DeepSeek V3Gemini 3 Flash →

Gemini 3 Flash (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,310vs1,495

Coding Elo

—vs1,510

SWE-bench

48.6%vs75.8%

LiveBench

55.4%vs66.8%

GPQA Diamond

59.1%vs78.4%

DeepSeek V3: 0WGemini 3 Flash: 5W

Gemini 3 Flash (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

66 tok/svs190 tok/s

Time to first token

380 msvs95 ms

DeepSeek V3: 0WGemini 3 Flash: 2W

DeepSeek V3 (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$1.03/1Mvs$3/1M

Input price

$0.26/1Mvs$0.5/1M

Context window

164kvs1M

DeepSeek V3: 2WGemini 3 Flash: 1W

Recommended Workload Routing

Repo / coding agentsGemini 3 Flash

Higher SWE-bench (75.8%).

High-volume chatDeepSeek V3

Lower output list price ($1.03/1M).

Voice / low-latency UIGemini 3 Flash

Lower TTFT (95 ms).

Long-document RAGGemini 3 Flash

Larger window (1M).

Screenshots / visionGemini 3 Flash

Gemini 3 Flash is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Gemini 3 Flash	Higher SWE-bench (75.8%).
High-volume chat	DeepSeek V3	Lower output list price ($1.03/1M).
Voice / low-latency UI	Gemini 3 Flash	Lower TTFT (95 ms).
Long-document RAG	Gemini 3 Flash	Larger window (1M).
Screenshots / vision	Gemini 3 Flash	Gemini 3 Flash is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, DeepSeek V3 or Gemini 3 Flash?

Gemini 3 Flash has the higher preference Elo in our latest snapshot (1,495). “Better” still depends on coding, price, and latency — see the table.

Which is better at coding, DeepSeek V3 or Gemini 3 Flash?

Gemini 3 Flash leads SWE-bench at 75.8% vs 48.6%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

DeepSeek V3 output tokens are $1.03/1M versus $3/1M. Input prices and retry rates still move the real bill.

Which is faster, DeepSeek V3 or Gemini 3 Flash?

Gemini 3 Flash has the lower time-to-first-token (95 ms vs 380 ms). Tokens/sec is a separate column if you care about long completions.

Which has the larger context window?

Gemini 3 Flash accepts 1M tokens versus 164k.

Can I self-host either model?

DeepSeek V3 is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. DeepSeek V3 and Gemini 3 Flash Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Gemini 3 Flash

Gemini 3 Flash

DeepSeek V3

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Gemini 3 Flash: near-top official SWE-bench at a fraction of Opus

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

DeepSeek V3

Gemini 3 Flash

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Gemini 3 Flash

Gemini 3 Flash

DeepSeek V3

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Gemini 3 Flash: near-top official SWE-bench at a fraction of Opus

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

DeepSeek V3

Gemini 3 Flash

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons