Which model is better: Claude 3.7 Sonnet or OpenAI GPT-4o?

OpenAI GPT-4o is 16.7% cheaper for input tokens ($2.50 vs. $3.00 per 1M tokens) and $10.00 vs. $15.00 for output tokens (1.2x cost difference). In terms of operational performance, OpenAI GPT-4o delivers faster response latency with 280ms TTFT (370ms faster than Claude 3.7 Sonnet). Claude 3.7 Sonnet leads coding benchmarks at 70.3% SWE-bench vs. 38.8% for OpenAI GPT-4o.
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 OpenAI GPT-4o Net Delta / Advantage
Input Cost / 1M Tokens $3.00 $2.50 OpenAI GPT-4o is 1.2x cheaper
Output Cost / 1M Tokens $15.00 $10.00 OpenAI GPT-4o (50% lower)
Avg TTFT Response Latency 650ms 280ms OpenAI GPT-4o (+370ms faster)
SWE-bench Verified (Coding) 70.3% 38.8% Claude 3.7 Sonnet (+31.5% lead)
Inference Value Score (IVR) 49.5 / 100 45.5 / 100 Claude 3.7 Sonnet (+4 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 3.7 Sonnet $5.45

$3/1M in · $15/1M out

OpenAI GPT-4o $67.50

$2.5/1M in · $10/1M out

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

When to Choose Claude 3.7 Sonnet

Choose Claude 3.7 Sonnet when you need Agentic coding, deep hybrid reasoning with controllable thinking budgets, and end-to-end software engineering workflows. and have an infrastructure budget aligned with $3.00/1M tokens.

B

When to Choose OpenAI GPT-4o

Choose OpenAI GPT-4o when you need General multimodal assistant applications, consumer chat interfaces, and enterprise knowledge workers. and prioritize OpenAI ecosystem integration at $2.50/1M tokens.

Related Questions & Decision Factors

Which is cheaper: Claude 3.7 Sonnet or OpenAI GPT-4o?

OpenAI GPT-4o is cheaper at $2.50/1M input tokens compared to $3.00/1M for Claude 3.7 Sonnet.

Which model has lower latency: Claude 3.7 Sonnet or OpenAI GPT-4o?

OpenAI GPT-4o delivers faster response times with an average TTFT of 280ms vs 650ms for Claude 3.7 Sonnet.

When should you choose Claude 3.7 Sonnet?

Choose Claude 3.7 Sonnet when you need Agentic coding, deep hybrid reasoning with controllable thinking budgets, and end-to-end software engineering workflows. and have an infrastructure budget aligned with $3.00/1M tokens.

When should you choose OpenAI GPT-4o?

Choose OpenAI GPT-4o when you need General multimodal assistant applications, consumer chat interfaces, and enterprise knowledge workers. and prioritize OpenAI ecosystem integration at $2.50/1M tokens.

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