Which model is better: Claude 3.7 Sonnet or Gemini 2.5 Pro?

**Gemini 2.5 Pro delivers substantial cost savings and speed, while Claude 3.7 Sonnet leads in software engineering capability.** Gemini is 58.3% cheaper on inputs at $1.25 versus $3.00 per 1M tokens, with $10.00 versus $15.00 outputs and a 700ms TTFT (80ms faster). Conversely, Claude outpaces Gemini on SWE-bench, achieving 70.3% compared to 63.8%.
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 3.7 Sonnet Gemini 2.5 Pro Net Delta / Advantage
Input Cost / 1M Tokens $3.00 $1.25 Gemini 2.5 Pro is 2.4x cheaper
Output Cost / 1M Tokens $15.00 $10.00 Gemini 2.5 Pro (33.3% lower)
Prompt Cache Read / 1M $0.300 $0.313 Claude 3.7 Sonnet is 1.0x cheaper
Prompt Cache Write / 1M $3.75 $1.25 Gemini 2.5 Pro is 3.0x cheaper
Avg TTFT Response Latency 780ms 700ms Gemini 2.5 Pro (+80ms faster)
SWE-bench Verified (Coding) 70.3% 63.8% Claude 3.7 Sonnet (+6.5% lead)
Inference Value Score (IVR) 53.4 / 100 56.1 / 100 Gemini 2.5 Pro (+2.7 pts)

Interactive Monthly Token Economics & ROI Forecaster

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

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

Estimated Monthly Spend

Claude 3.7 Sonnet $67.50

$3.00/1M in · $15.00/1M out

Prompt Cache: $0.300/1M read · $3.75/1M write

Gemini 2.5 Pro $37.50

$1.25/1M in · $10.00/1M out

Prompt Cache: $0.313/1M read · $1.25/1M write

Projected Monthly Cost Reduction
$30.00 / mo
(44.4% lower cost with Gemini 2.5 Pro)
A

When to Choose Claude 3.7 Sonnet

Choose Claude 3.7 Sonnet when you need Frontier hybrid reasoning and software engineering model capable of instant responses or dynamic, extended test-time compute for full-stack repository development. and have an infrastructure budget aligned with $3.00/1M tokens.

B

When to Choose Gemini 2.5 Pro

Choose Gemini 2.5 Pro when you need Million-token multimodal analysis spanning hours of video, audio streams, massive document archives, and complex codebase ingestion. and prioritize Google ecosystem integration at $1.25/1M tokens.

Related Questions & Decision Factors

Which is cheaper: Claude 3.7 Sonnet or Gemini 2.5 Pro?

Gemini 2.5 Pro is cheaper at $1.25/1M input tokens compared to $3.00/1M for Claude 3.7 Sonnet.

Which model has lower latency: Claude 3.7 Sonnet or Gemini 2.5 Pro?

Gemini 2.5 Pro delivers faster response times with an average TTFT of 700ms vs 780ms for Claude 3.7 Sonnet.

When should you choose Claude 3.7 Sonnet?

Choose Claude 3.7 Sonnet when you need Frontier hybrid reasoning and software engineering model capable of instant responses or dynamic, extended test-time compute for full-stack repository development. and have an infrastructure budget aligned with $3.00/1M tokens.

When should you choose Gemini 2.5 Pro?

Choose Gemini 2.5 Pro when you need Million-token multimodal analysis spanning hours of video, audio streams, massive document archives, and complex codebase ingestion. and prioritize Google ecosystem integration at $1.25/1M tokens.

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