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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 Opus 5 vs Gemini 3.6 Pro

Pairwise benchmark snapshot · Aug 16, 2026

Claude Opus 5 vs Gemini 3.6 Pro benchmark

In this head-to-head showdown, Claude Opus 5 delivers higher overall intelligence and human-preferred responses (Elo 1,624 vs 1,570), while Claude Opus 5 leads in SWE-bench software engineering benchmarks (79.2%), while Gemini 3.6 Pro is more budget-friendly at $5/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose Claude Opus 5 if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Gemini 3.6 Pro if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
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Verified Head-to-Head Advantage Breakdown

10 direct benchmark disciplines evaluated across capability, speed, and cost

Claude Opus 5 (5)Gemini 3.6 Pro (5)
Claude Opus 5
5 of 10 Wins
✓Preference Elo✓Coding Elo✓LiveBench✓SWE-bench✓GPQA Diamond
Gemini 3.6 Pro
5 of 10 Wins
✓Time to first token✓Output speed✓Input price✓Output price✓Context window
Anthropic
Leads 5 of 10 metrics
Claude Opus 5

Anthropic current default flagship. Official API $5/$25 per 1M tokens and a 1M context window (Anthropic, Jul 24 2026).

Elo 1,624$25/1M out
Google
Leads 5 of 10 metrics
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

Claude Opus 5 Thinking Depth & Cost Scaler

Model A

Simulate accuracy gains vs added response time & token cost

Mode: Medium (16k budget)

Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.

Thinking Delay
310 ms
Standard speed
Reasoning Depth
~3,200
Internal tokens
Cost / 1k Calls
$90.00
9.0× standard bill
Accuracy Boost
+5.2% accuracy
STEM & SWE-bench

Gemini 3.6 Pro Thinking Depth & Cost Scaler

Model B

Simulate accuracy gains vs added response time & token cost

Mode: Medium (8k tokens)

Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.

Thinking Delay
205 ms
Standard speed
Reasoning Depth
~2,400
Internal tokens
Cost / 1k Calls
$14.13
6.6× standard bill
Accuracy Boost
+4.8% accuracy
STEM & SWE-bench
Top Rival Showdowns for Claude Opus 5
All Matchups
Compare vs:vs GPT-5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference LeaderClaude Opus 5 Wins

Claude Opus 5

Δ 54 Arena Elo pts

Throughput LeaderGemini 3.6 Pro Wins

Gemini 3.6 Pro

102 tok/s

Value per Dollar LeaderGemini 3.6 Pro Wins

Gemini 3.6 Pro

$5 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
Percentile 0–100
Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Claude Opus 5 (5)vsGemini 3.6 Pro (5)
Claude Opus 5: 5W (50%)Overall: Even matchupGemini 3.6 Pro: 5W (50%)
← Claude Opus 5Gemini 3.6 Pro →
🏆Claude Opus 5(5/5)

Intelligence & Reasoning

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

Benchmark
Claude Opus 5vsGemini 3.6 Pro
Preference Elo
1,624vs1,570+54
Coding Elo
1,618vs1,566+52
SWE-bench
79.2%vs74.6%+4.6%
LiveBench
74.8%vs71.8%+3%
GPQA Diamond
87.1%vs84.4%+2.7%
Claude Opus 5: 5WGemini 3.6 Pro: 0W
🏆Gemini 3.6 Pro(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Claude Opus 5vsGemini 3.6 Pro
Output speed
72 tok/svs102 tok/s+30 tok/s
Time to first token
310 msvs205 ms+105 ms
Claude Opus 5: 0WGemini 3.6 Pro: 2W
🏆Gemini 3.6 Pro(3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Claude Opus 5vsGemini 3.6 Pro
Output price
$25/1Mvs$5/1M+$20/1M
Input price
$5/1Mvs$1.25/1M+$3.75/1M
Context window
1Mvs2M+1M
Claude Opus 5: 0WGemini 3.6 Pro: 3W

Side-by-Side Benchmark Matrix

Preference Elo+54
Claude Opus 51,624
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro1,570
seed-bootstrap · Aug 16, 2026
Coding Elo+52
Claude Opus 51,618
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro1,566
seed-bootstrap · Aug 16, 2026
LiveBench+3%
Claude Opus 574.8%
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro71.8%
seed-bootstrap · Aug 16, 2026
SWE-bench+4.6%
Claude Opus 579.2%
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro74.6%
seed-bootstrap · Aug 16, 2026
GPQA Diamond+2.7%
Claude Opus 587.1%
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro84.4%
seed-bootstrap · Aug 16, 2026
Time to first token+105 ms
Claude Opus 5310 ms
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro205 ms
seed-bootstrap · Aug 16, 2026
Output speed+30 tok/s
Claude Opus 572 tok/s
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro102 tok/s
seed-bootstrap · Aug 16, 2026
Input price+$3.75/1M
Claude Opus 5$5/1M
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro$1.25/1M
seed-bootstrap · Aug 16, 2026
Output price+$20/1M
Claude Opus 5$25/1M
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro$5/1M
seed-bootstrap · Aug 16, 2026
Context window+1M
Claude Opus 51M
seed-bootstrap · Aug 16, 2026
Gemini 3.6 Pro2M
seed-bootstrap · Aug 16, 2026
BenchmarkClaude Opus 5Gemini 3.6 ProAdvantage Delta
Preference Elo
1,624
seed-bootstrap · Aug 16, 2026
1,570
seed-bootstrap · Aug 16, 2026
+54
Coding Elo
1,618
seed-bootstrap · Aug 16, 2026
1,566
seed-bootstrap · Aug 16, 2026
+52
LiveBench
74.8%
seed-bootstrap · Aug 16, 2026
71.8%
seed-bootstrap · Aug 16, 2026
+3%
SWE-bench
79.2%
seed-bootstrap · Aug 16, 2026
74.6%
seed-bootstrap · Aug 16, 2026
+4.6%
GPQA Diamond
87.1%
seed-bootstrap · Aug 16, 2026
84.4%
seed-bootstrap · Aug 16, 2026
+2.7%
Time to first token
310 ms
seed-bootstrap · Aug 16, 2026
205 ms
seed-bootstrap · Aug 16, 2026
+105 ms
Output speed
72 tok/s
seed-bootstrap · Aug 16, 2026
102 tok/s
seed-bootstrap · Aug 16, 2026
+30 tok/s
Input price
$5/1M
seed-bootstrap · Aug 16, 2026
$1.25/1M
seed-bootstrap · Aug 16, 2026
+$3.75/1M
Output price
$25/1M
seed-bootstrap · Aug 16, 2026
$5/1M
seed-bootstrap · Aug 16, 2026
+$20/1M
Context window
1M
seed-bootstrap · Aug 16, 2026
2M
seed-bootstrap · Aug 16, 2026
+1M
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 78% 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 Opus 5$550.00 / mo
In: $175Out: $375
Gemini 3.6 Pro$118.75 / mo
In: $43.75Out: $75
Estimated Cost Delta

Gemini 3.6 Pro is estimated to save $431.25/month ($5,175/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Claude Opus 5:Pick Claude Opus 5 when repo-level coding accuracy is the constraint.
  • 2
    Gemini 3.6 Pro:Pick Gemini 3.6 Pro when you are optimizing output cost.
  • 3
    Gemini 3.6 Pro:Pick Gemini 3.6 Pro when time-to-first-token matters more than peak Elo.

Recommended Workload Routing

Repo / coding agentsClaude Opus 5

Higher SWE-bench (79.2%).

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 / visionClaude Opus 5

Both accept images. Defaulting to the higher-Elo side (Claude Opus 5).

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsClaude Opus 5Higher SWE-bench (79.2%).
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 / visionClaude Opus 5Both accept images. Defaulting to the higher-Elo side (Claude Opus 5).

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.

compareAug 10, 2026

Sonnet vs Opus in 2026: same family, different invoice

Usually Sonnet 5 vs Opus 5. Coding delta versus output $/1M. The workhorse question.

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 24, 2026

Claude vs GPT benchmark: this hub always remaps to the current Elo leaders

Not a frozen 2025 article. Today that is usually Opus 5 vs GPT-5.6 Sol. Dated cells, not a brand fight.

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
Anthropic

Claude Opus 5

Elo 1,624
SWE-bench79.2%
Speed (tok/s)72 tok/s
Input / 1M Tokens$5/1M
Output / 1M Tokens$25/1M
Google

Gemini 3.6 Pro

Elo 1,570
SWE-bench74.6%
Speed (tok/s)102 tok/s
Input / 1M Tokens$1.25/1M
Output / 1M Tokens$5/1M

Frequently Asked Questions

Which is better overall, Claude Opus 5 or Gemini 3.6 Pro?
Claude Opus 5 has the higher preference Elo in our latest snapshot (1,624). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Claude Opus 5 or Gemini 3.6 Pro?
Claude Opus 5 leads SWE-bench at 79.2% vs 74.6%. 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 $25/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude Opus 5 or Gemini 3.6 Pro?
Gemini 3.6 Pro has the lower time-to-first-token (205 ms vs 310 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 Opus 5 and Gemini 3.6 Pro Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • compare · Jul 24, 2026

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

  • compare · Aug 13, 2026

    Gemini Flash vs Pro: when Flash is the whole product

  • compare · Aug 10, 2026

    Sonnet vs Opus in 2026: same family, different invoice

  • compare · Jul 24, 2026

    Claude vs GPT benchmark: this hub always remaps to the current Elo leaders

Similar Head-to-Head Comparisons

All Claude Opus 5 matchups →|All Gemini 3.6 Pro matchups →
Claude Opus 5 vs Claude Opus 4.8 (previous opus)Gemini 3.6 Pro vs Gemini 3 Pro (previous gemini-pro)Claude Fable 5 vs Claude Opus 5Claude Opus 4.6 vs Gemini 3.6 ProClaude Opus 4.5 vs Gemini 3.6 ProClaude Sonnet 5 vs Gemini 3.6 Pro