Pairwise benchmark snapshot · Aug 16, 2026

Claude 3.7 Sonnet vs Gemini 3 Flash benchmark

Name: Claude 3.7 Sonnet vs Gemini 3 Flash AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Claude 3.7 Sonnet (Anthropic) 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 133 points (1,495 vs 1,362; seed-bootstrap (Aug 1, 2026)). On SWE-bench coding, Gemini 3 Flash resolves 75.8% versus 70.3% (seed-bootstrap (Aug 1, 2026)). Gemini 3 Flash streams faster (190 tok/s) while Gemini 3 Flash is the cheaper output token ($3/1M). 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

Anthropic

Claude 3.7 Sonnet

Hybrid-reasoning Sonnet from 2025. Kept for historical compare pages.

Elo 1,362$15/1M 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 GPT-5

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude 3.7 Sonnet (1)vsGemini 3 Flash (9)

Claude 3.7 Sonnet: 1W (10%)Overall: Gemini 3 FlashGemini 3 Flash: 9W (90%)

← Claude 3.7 SonnetGemini 3 Flash →

Gemini 3 Flash (4/5)

Intelligence & Reasoning

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

Preference Elo

1,362vs1,495

Coding Elo

—vs1,510

SWE-bench

70.3%vs75.8%

LiveBench

58.4%vs66.8%

GPQA Diamond

78.5%vs78.4%

Claude 3.7 Sonnet: 1WGemini 3 Flash: 4W

Gemini 3 Flash (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

85 tok/svs190 tok/s

Time to first token

240 msvs95 ms

Claude 3.7 Sonnet: 0WGemini 3 Flash: 2W

Gemini 3 Flash (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$15/1Mvs$3/1M

Input price

$3/1Mvs$0.5/1M

Context window

200kvs1M

Claude 3.7 Sonnet: 0WGemini 3 Flash: 3W

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

133 pts advantage

Throughput Speed

Gemini 3 Flash

105 tok/s faster

Price Efficiency

Gemini 3 Flash

$12.00/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

1,362

EloHigh is better

1,495+10%

Code Elo

High is better

—

Code EloHigh is better

1,510

LiveBench

High is better

58.4%

LiveBenchHigh is better

66.8%+14%

SWE-bench

High is better

70.3%

SWE-benchHigh is better

75.8%+8%

GPQA

High is better

78.5%

GPQAHigh is better

78.4%

TTFT

Low is better

240 ms

TTFTLow is better

95 ms+153%

Speed

High is better

85 tok/s

SpeedHigh is better

190 tok/s+124%

In $

Low is better

$3/1M

In $Low is better

$0.5/1M+500%

Out $

Low is better

$15/1M

Out $Low is better

$3/1M+400%

Context

High is better

200k

ContextHigh is better

1M+424%

Interactive Simulator

Workload Cost & Savings Calculator

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

Save up to 81% with Gemini 3 Flash

Monthly Volume50M tokens/mo

Quick Presets:

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

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

Claude 3.7 Sonnet$330.00 / mo

In: $105.00Out: $225.00

Gemini 3 Flash$62.50 / mo

In: $17.50Out: $45.00

Estimated Cost Delta

Gemini 3 Flash is estimated to save $267.50/month ($3,210/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
Gemini 3 Flash:Pick Gemini 3 Flash when time-to-first-token matters more than peak Elo.
3
Gemini 3 Flash:Pick Gemini 3 Flash for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsGemini 3 Flash

Higher SWE-bench (75.8%).

High-volume chatGemini 3 Flash

Lower output list price ($3/1M).

Voice / low-latency UIGemini 3 Flash

Lower TTFT (95 ms).

Long-document RAGGemini 3 Flash

Larger window (1M).

Screenshots / visionGemini 3 Flash

Both accept images. Defaulting to the higher-Elo side (Gemini 3 Flash).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Gemini 3 Flash	Higher SWE-bench (75.8%).
High-volume chat	Gemini 3 Flash	Lower output list price ($3/1M).
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	Both accept images. Defaulting to the higher-Elo side (Gemini 3 Flash).

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.

newsFeb 25, 2025

Claude 3.7 Sonnet stays as a historical hybrid-reasoning baseline

2025 hybrid-reasoning Sonnet. Deprecated for buying, kept for old compare URLs and “what did 3.7 score?”

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/claude-3-7-sonnet-vs-gemini-3-flash/opengraph-image for crawlers.

PNG

CompareLLM Matrix

Verified head-to-head card

LIVE

Anthropic

Claude 3.7 Sonnet

Elo 1,362

LiveBench58.4%

SWE-bench70.3%

Speed85 tok/s

Output cost$15/1M

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, Claude 3.7 Sonnet 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, Claude 3.7 Sonnet or Gemini 3 Flash?: Gemini 3 Flash leads SWE-bench at 75.8% vs 70.3%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: Gemini 3 Flash output tokens are $3/1M versus $15/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude 3.7 Sonnet or Gemini 3 Flash?: Gemini 3 Flash has the lower time-to-first-token (95 ms vs 240 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 200k.
Can I self-host either model?: Neither model is marked open-weights here. You are comparing hosted APIs.
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. Claude 3.7 Sonnet 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 Claude 3.7 Sonnet matchups →|All Gemini 3 Flash matchups →

Claude 3.7 Sonnet vs Claude 3.5 Sonnet (previous sonnet)Claude 3.7 Sonnet vs Claude Sonnet 4 (next sonnet)Gemini 3 Flash vs Gemini 2.5 Flash (previous gemini-flash)Gemini 3 Flash vs Gemini 3.6 Flash (next gemini-flash)Gemini 2.0 Flash Thinking vs Gemini 3 Flash Claude Opus 4.5 vs Gemini 3 Flash

Claude 3.7 Sonnet vs Gemini 3 Flash benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude 3.7 Sonnet (1)vsGemini 3 Flash (9)

Claude 3.7 Sonnet: 1W (10%)Overall: Gemini 3 FlashGemini 3 Flash: 9W (90%)

← Claude 3.7 SonnetGemini 3 Flash →

Gemini 3 Flash (4/5)

Intelligence & Reasoning

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

Preference Elo

1,362vs1,495

Coding Elo

—vs1,510

SWE-bench

70.3%vs75.8%

LiveBench

58.4%vs66.8%

GPQA Diamond

78.5%vs78.4%

Claude 3.7 Sonnet: 1WGemini 3 Flash: 4W

Gemini 3 Flash (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

85 tok/svs190 tok/s

Time to first token

240 msvs95 ms

Claude 3.7 Sonnet: 0WGemini 3 Flash: 2W

Gemini 3 Flash (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$15/1Mvs$3/1M

Input price

$3/1Mvs$0.5/1M

Context window

200kvs1M

Claude 3.7 Sonnet: 0WGemini 3 Flash: 3W

Recommended Workload Routing

Repo / coding agentsGemini 3 Flash

Higher SWE-bench (75.8%).

High-volume chatGemini 3 Flash

Lower output list price ($3/1M).

Voice / low-latency UIGemini 3 Flash

Lower TTFT (95 ms).

Long-document RAGGemini 3 Flash

Larger window (1M).

Screenshots / visionGemini 3 Flash

Both accept images. Defaulting to the higher-Elo side (Gemini 3 Flash).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Gemini 3 Flash	Higher SWE-bench (75.8%).
High-volume chat	Gemini 3 Flash	Lower output list price ($3/1M).
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	Both accept images. Defaulting to the higher-Elo side (Gemini 3 Flash).

Frequently Asked Questions

Which is better overall, Claude 3.7 Sonnet 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, Claude 3.7 Sonnet or Gemini 3 Flash?

Gemini 3 Flash leads SWE-bench at 75.8% vs 70.3%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

Gemini 3 Flash output tokens are $3/1M versus $15/1M. Input prices and retry rates still move the real bill.

Which is faster, Claude 3.7 Sonnet or Gemini 3 Flash?

Gemini 3 Flash has the lower time-to-first-token (95 ms vs 240 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 200k.

Can I self-host either model?

Neither model is marked open-weights here. You are comparing hosted APIs.

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. Claude 3.7 Sonnet 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

Gemini 3 Flash

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

Claude 3.7 Sonnet stays as a historical hybrid-reasoning baseline

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Claude 3.7 Sonnet

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

Gemini 3 Flash

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

Claude 3.7 Sonnet stays as a historical hybrid-reasoning baseline

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Claude 3.7 Sonnet

Gemini 3 Flash

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons