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© 2026 CompareLLM. Public benchmark data aggregated from Arena Elo, LiveBench, SWE-bench & OpenRouter.

Every score has a dated snapshot.

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  3. Claude Sonnet 4.5 vs Gemini 3.6 Pro

Pairwise benchmark snapshot · Aug 16, 2026

Claude Sonnet 4.5 vs Gemini 3.6 Pro benchmark

This page compares Claude Sonnet 4.5 (Anthropic) and Gemini 3.6 Pro (Google) using the latest snapshots we have as of Aug 16, 2026. On preference Elo, Gemini 3.6 Pro is ahead by 46 points (1,570 vs 1,524; seed-bootstrap (Aug 16, 2026)). On SWE-bench coding, Gemini 3.6 Pro resolves 74.6% versus 70.1% (seed-bootstrap (Aug 16, 2026)). Gemini 3.6 Pro streams faster (102 tok/s) while Gemini 3.6 Pro is the cheaper output token ($5/1M). Gemini 3.6 Pro has the larger context window (2M 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.

Quick answer

Claude Sonnet 4.5 vs Gemini 3.6 Pro is a dated snapshot, not a lab score. Gemini 3.6 Pro leads preference Elo (1,570 vs 1,524). Gemini 3.6 Pro leads SWE-bench coding. Gemini 3.6 Pro is the cheaper output token. Elo is crowd preference, not an exam. Pick the column that matches the job.
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Anthropic

Claude Sonnet 4.5

Workhorse Anthropic model: most of Opus coding quality at a mid-tier price.

Elo 1,524$15/1M out

Google

Gemini 3.6 Pro

Current Google Pro-class multimodal model. Long context, strong coding, billed like the 3.x Pro tier.

Elo 1,570$5/1M 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 4.5vs Claude Opus 4.6vs Claude 3.7 Sonnetvs GPT-5

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude Sonnet 4.5 (0)vsGemini 3.6 Pro (10)
Claude Sonnet 4.5: 0W (0%)Overall: Gemini 3.6 ProGemini 3.6 Pro: 10W (100%)
← Claude Sonnet 4.5Gemini 3.6 Pro →
Gemini 3.6 Pro (5/5)

Intelligence & Reasoning

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

Preference Elo
1,524vs1,570
Coding Elo
1,531vs1,566
SWE-bench
70.1%vs74.6%
LiveBench
67.4%vs71.8%
GPQA Diamond
80.2%vs84.4%
Claude Sonnet 4.5: 0WGemini 3.6 Pro: 5W
Gemini 3.6 Pro (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed
88 tok/svs102 tok/s
Time to first token
240 msvs205 ms
Claude Sonnet 4.5: 0WGemini 3.6 Pro: 2W
Gemini 3.6 Pro (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price
$15/1Mvs$5/1M
Input price
$3/1Mvs$1.25/1M
Context window
1Mvs2M
Claude Sonnet 4.5: 0WGemini 3.6 Pro: 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 3.6 Pro 6/6
Preference Elo

Gemini 3.6 Pro

46 pts advantage

Throughput Speed

Gemini 3.6 Pro

14 tok/s faster

Price Efficiency

Gemini 3.6 Pro

$10.00/1M cheaper

Full Benchmark Score Matrix

—
Elo
High is better
1,524
EloHigh is better
1,570+3%
Code Elo
High is better
1,531
Code EloHigh is better
1,566+2%
LiveBench
High is better
67.4%
LiveBenchHigh is better
71.8%+7%
SWE-bench
High is better
70.1%
SWE-benchHigh is better
74.6%+6%
GPQA
High is better
80.2%
GPQAHigh is better
84.4%+5%
TTFT
Low is better
240 ms
TTFTLow is better
205 ms+17%
Speed
High is better
88 tok/s
SpeedHigh is better
102 tok/s+16%
In $
Low is better
$3/1M
In $Low is better
$1.25/1M+140%
Out $
Low is better
$15/1M
Out $Low is better
$5/1M+200%
Context
High is better
1M
ContextHigh is better
2M+100%
Interactive Simulator

Workload Cost & Savings Calculator

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

Save up to 64% with Gemini 3.6 Pro
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Claude Sonnet 4.5$330.00 / mo
In: $105.00Out: $225.00
Gemini 3.6 Pro$118.75 / mo
In: $43.75Out: $75.00
Estimated Cost Delta

Gemini 3.6 Pro is estimated to save $211.25/month ($2,535/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Gemini 3.6 Pro:Pick Gemini 3.6 Pro when repo-level coding accuracy is the constraint.
  • 2
    Gemini 3.6 Pro:Pick Gemini 3.6 Pro when time-to-first-token matters more than peak Elo.
  • 3
    Gemini 3.6 Pro:Pick Gemini 3.6 Pro for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsGemini 3.6 Pro

Higher SWE-bench (74.6%).

High-volume chatGemini 3.6 Pro

Lower output list price ($5/1M).

Voice / low-latency UIGemini 3.6 Pro

Lower TTFT (205 ms).

Long-document RAGGemini 3.6 Pro

Larger window (2M).

Screenshots / visionGemini 3.6 Pro

Both accept images. Defaulting to the higher-Elo side (Gemini 3.6 Pro).

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsGemini 3.6 ProHigher SWE-bench (74.6%).
High-volume chatGemini 3.6 ProLower output list price ($5/1M).
Voice / low-latency UIGemini 3.6 ProLower TTFT (205 ms).
Long-document RAGGemini 3.6 ProLarger window (2M).
Screenshots / visionGemini 3.6 ProBoth accept images. Defaulting to the higher-Elo side (Gemini 3.6 Pro).

Related Editorial Dispatches & Benchmark Notes

View all news
compareAug 13, 2026

Gemini Flash vs Pro: when Flash is the whole product

3.7 Flash vs 3.6 Pro is the current Google volume-versus-upgrade pair.

compareJul 24, 2026

Claude vs Gemini: coding, Elo, and output price — not a brand mashup

Top Anthropic vs top Google. Usually Opus 5 vs 3.6 Pro. Two different invoices.

compareJul 16, 2026

Gemini vs GPT: long context versus the OpenAI flagship invoice

Hub remaps to top Google vs top OpenAI Elo. Usually 3.6 Pro vs Sol. Window vs price is the plot.

launchJul 15, 2026

Gemini 3.6 Pro: Google’s current Pro-class long-context row

2M context, Pro-class Elo and coding. Upgrade path from Flash is this page, not a vibe check.

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CompareLLM Matrix

Verified head-to-head card

LIVE
VS
Anthropic

Claude Sonnet 4.5

Elo 1,524
LiveBench67.4%
SWE-bench70.1%
Speed88 tok/s
Output cost$15/1M
Google

Gemini 3.6 Pro

Elo 1,570
LiveBench71.8%
SWE-bench74.6%
Speed102 tok/s
Output cost$5/1M

Frequently Asked Questions

Which is better overall, Claude Sonnet 4.5 or Gemini 3.6 Pro?
Gemini 3.6 Pro has the higher preference Elo in our latest snapshot (1,570). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Claude Sonnet 4.5 or Gemini 3.6 Pro?
Gemini 3.6 Pro leads SWE-bench at 74.6% vs 70.1%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?
Gemini 3.6 Pro output tokens are $5/1M versus $15/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude Sonnet 4.5 or Gemini 3.6 Pro?
Gemini 3.6 Pro has the lower time-to-first-token (205 ms vs 240 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?
Gemini 3.6 Pro accepts 2M tokens versus 1M.
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 Sonnet 4.5 and Gemini 3.6 Pro Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • compare · Aug 13, 2026

    Gemini Flash vs Pro: when Flash is the whole product

  • compare · Jul 24, 2026

    Claude vs Gemini: coding, Elo, and output price — not a brand mashup

  • compare · Jul 16, 2026

    Gemini vs GPT: long context versus the OpenAI flagship invoice

  • launch · Jul 15, 2026

    Gemini 3.6 Pro: Google’s current Pro-class long-context row

Similar Head-to-Head Comparisons

All Claude Sonnet 4.5 matchups →|All Gemini 3.6 Pro matchups →
Claude Sonnet 4.5 vs Claude Sonnet 4 (previous sonnet)Claude Sonnet 4.5 vs Claude Sonnet 5 (next sonnet)Gemini 3.6 Pro vs Gemini 3 Pro (previous gemini-pro)Gemini 3.7 Flash vs Claude Sonnet 4.5Gemini 3.6 Flash vs Claude Sonnet 4.5Gemini 3 Flash vs Claude Sonnet 4.5