💰 Unit Cost Winner Gemini 3.1 Pro $1.25/1M in · $10.00/1M out
⚡ Latency & Speed Winner Gemini 3.1 Pro 420ms TTFT · 98 tok/s
💻 Coding (SWE) Winner Claude 4 Opus 77.2% SWE-bench · 96.8% HumanEval
🧠 STEM Reasoning Winner Claude 4 Opus 87.1% GPQA · 98.1% MATH-500

Which model is better: Claude 4 Opus or Gemini 3.1 Pro?

Gemini 3.1 Pro is 91.7% cheaper for input tokens ($1.25 vs. $15.00 per 1M tokens) and $10.00 vs. $75.00 for output tokens (12.0x cost advantage). In terms of operational performance, Gemini 3.1 Pro delivers lower response latency at 420ms TTFT (500ms faster than Claude 4 Opus) with 98 vs. 46 tok/s throughput. Claude 4 Opus leads coding evaluations at 77.2% SWE-bench Verified vs. 71.8% for Gemini 3.1 Pro and 87.1% vs. 82.4% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.

Verified Performance & Unit Economics Delta (12 Dimensions)

Daily synchronized metrics across token pricing, prompt cache economics, latency, throughput, and 5 capability benchmarks.

Metric / Dimension Claude 4 Opus Gemini 3.1 Pro Net Delta / Advantage
Input Cost / 1M Tokens $15.00 $1.25 Gemini 3.1 Pro is 12.0x cheaper
Output Cost / 1M Tokens $75.00 $10.00 Gemini 3.1 Pro (86.7% lower)
Prompt Cache Read / 1M $1.500 $0.310 Gemini 3.1 Pro is 4.8x cheaper
Prompt Cache Write / 1M $18.75 $1.25 Gemini 3.1 Pro is 15.0x cheaper
Context Window (Max Output) 205k (64k out) 1,049k (66k out) Gemini 3.1 Pro (5.1x larger context)
Avg TTFT Response Latency 920ms 420ms Gemini 3.1 Pro (500ms faster)
Generation Speed (Throughput) 46 tok/s 98 tok/s Gemini 3.1 Pro (+52 tok/s faster)
SWE-bench Verified (Coding) 77.2% 71.8% Claude 4 Opus (+5.4% lead)
GPQA Diamond (PhD STEM) 87.1% 82.4% Claude 4 Opus (+4.7% lead)
MMLU-Pro (Multi-Discipline) 91.8% 89.5% Claude 4 Opus (+2.3% lead)
MATH-500 (Quantitative Logic) 98.1% 96.8% Claude 4 Opus (+1.3% lead)
Inference Value Score (IVR) 43.6 / 100 60 / 100 Gemini 3.1 Pro (+16.4 pts)

Interactive Monthly Token Economics & ROI Forecaster

Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.

25.0M Tokens
500K 50M 250M 500M+
5.0M Tokens
100K 25M 75M 150M+
50% Cached
0% (Uncached) 25% 50% (Typical Agent) 95% Max

Estimated Monthly Spend

Claude 4 Opus $581.25

$15.00/1M in · $75.00/1M out

Prompt Cache: $1.500/1M read · $18.75/1M write

Gemini 3.1 Pro $69.50

$1.25/1M in · $10.00/1M out

Prompt Cache: $0.310/1M read · $1.25/1M write

Projected Monthly Cost Reduction
$511.75 / mo
(88.0% lower cost with Gemini 3.1 Pro)
Open Full Matchup Analysis →
A

When to Choose Claude 4 Opus

Choose Claude 4 Opus (Anthropic) for mission-critical R&D, long-horizon autonomous coding tasks, complex theorem proving, and executive strategic synthesis — offering a 204k context window, 920ms TTFT, and $15.00/1M input pricing ($1.500/1M cached reads).

B

When to Choose Gemini 3.1 Pro

Choose Gemini 3.1 Pro (Google) for complex enterprise architecture planning, multi-file code refactoring, legal/financial corpus auditing, and multimodal research — offering a 1,048k context window, 420ms TTFT, and $1.25/1M input pricing ($0.310/1M cached reads).

Related Questions & Decision Factors

Which is cheaper: Claude 4 Opus or Gemini 3.1 Pro?

Gemini 3.1 Pro is cheaper at $1.25/1M input tokens ($10.00/1M output) compared to $15.00/1M input ($75.00/1M output) for Claude 4 Opus.

Which model has lower TTFT latency and higher tok/s throughput: Claude 4 Opus or Gemini 3.1 Pro?

Gemini 3.1 Pro delivers faster first-token latency at 420ms TTFT (98 tok/s throughput) compared to 920ms TTFT (46 tok/s) for Claude 4 Opus.

How do Claude 4 Opus and Gemini 3.1 Pro compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, Claude 4 Opus scores 77.2% versus 71.8% for Gemini 3.1 Pro. On GPQA Diamond graduate-level STEM reasoning, Claude 4 Opus scores 87.1% versus 82.4% for Gemini 3.1 Pro (and 98.1% vs 96.8% on MATH-500).

When should you choose Claude 4 Opus?

Choose Claude 4 Opus (Anthropic) for mission-critical R&D, long-horizon autonomous coding tasks, complex theorem proving, and executive strategic synthesis — offering a 204k context window, 920ms TTFT, and $15.00/1M input pricing ($1.500/1M cached reads).

When should you choose Gemini 3.1 Pro?

Choose Gemini 3.1 Pro (Google) for complex enterprise architecture planning, multi-file code refactoring, legal/financial corpus auditing, and multimodal research — offering a 1,048k context window, 420ms TTFT, and $1.25/1M input pricing ($0.310/1M cached reads).

Explore High-Priority Related Model Matchups