Which model is better: Claude Opus 5 or Gemini 3.7 Flash?

Gemini 3.7 Flash is 98.4% cheaper for input tokens ($0.08 vs. $5.00 per 1M tokens) and $0.32 vs. $25.00 for output tokens (62.5x cost difference). In terms of operational performance, Gemini 3.7 Flash delivers faster response latency with 75ms TTFT (265ms faster than Claude Opus 5). Claude Opus 5 leads coding benchmarks at 82.4% SWE-bench vs. 68.2% for Gemini 3.7 Flash.
Verified daily via automated API latency tests and official documentation.

Verified Performance & Unit Economics Delta

Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.

Metric / Dimension Claude Opus 5 Gemini 3.7 Flash Net Delta / Advantage
Input Cost / 1M Tokens $5.00 $0.08 Gemini 3.7 Flash is 62.5x cheaper
Output Cost / 1M Tokens $25.00 $0.32 Gemini 3.7 Flash (7712.5% lower)
Avg TTFT Response Latency 340ms 75ms Gemini 3.7 Flash (+265ms faster)
SWE-bench Verified (Coding) 82.4% 68.2% Claude Opus 5 (+14.2% lead)
Inference Value Score (IVR) 42.7 / 100 99.9 / 100 Gemini 3.7 Flash (+57.2 pts)

Interactive Monthly Token Economics & ROI Forecaster

Model your expected production workload across prompt (input) and completion (output) tokens.

Live Calculation Engine
10.0M Tokens
100K 50M 250M 500M+
2.5M Tokens
100K 10M 50M 100M+

Estimated Monthly Spend

Claude Opus 5 $5.45

$5/1M in · $25/1M out

Gemini 3.7 Flash $67.50

$0.08/1M in · $0.32/1M out

Projected Monthly Cost Reduction
$62.05 / mo
(91.9% lower cost)
A

When to Choose Claude Opus 5

Choose Claude Opus 5 when you need Pinnacle autonomous software architecture, whole-system enterprise codebases, PhD-level scientific synthesis, and complex multi-agent delegation. and have an infrastructure budget aligned with $5.00/1M tokens.

B

When to Choose Gemini 3.7 Flash

Choose Gemini 3.7 Flash when you need 2M+ context window ingestion, sub-100ms real-time audio/video streaming, high-speed coding agents, and cost-disruptive production intelligence. and prioritize Google ecosystem integration at $0.08/1M tokens.

Related Questions & Decision Factors

Which is cheaper: Claude Opus 5 or Gemini 3.7 Flash?

Gemini 3.7 Flash is cheaper at $0.08/1M input tokens compared to $5.00/1M for Claude Opus 5.

Which model has lower latency: Claude Opus 5 or Gemini 3.7 Flash?

Gemini 3.7 Flash delivers faster response times with an average TTFT of 75ms vs 340ms for Claude Opus 5.

When should you choose Claude Opus 5?

Choose Claude Opus 5 when you need Pinnacle autonomous software architecture, whole-system enterprise codebases, PhD-level scientific synthesis, and complex multi-agent delegation. and have an infrastructure budget aligned with $5.00/1M tokens.

When should you choose Gemini 3.7 Flash?

Choose Gemini 3.7 Flash when you need 2M+ context window ingestion, sub-100ms real-time audio/video streaming, high-speed coding agents, and cost-disruptive production intelligence. and prioritize Google ecosystem integration at $0.08/1M tokens.

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