Which model is better: Claude 3.7 Sonnet or GPT-5.6 Sol?

Claude 3.7 Sonnet is 62.5% cheaper for input tokens ($3.00 vs. $8.00 per 1M tokens) and $15.00 vs. $32.00 for output tokens (2.7x cost difference). In terms of operational performance, GPT-5.6 Sol delivers faster response latency with 420ms TTFT (230ms faster than Claude 3.7 Sonnet). GPT-5.6 Sol leads coding benchmarks at 79.5% SWE-bench vs. 70.3% for Claude 3.7 Sonnet.
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 GPT-5.6 Sol Net Delta / Advantage
Input Cost / 1M Tokens $3.00 $8.00 Claude 3.7 Sonnet is 2.7x cheaper
Output Cost / 1M Tokens $15.00 $32.00 Claude 3.7 Sonnet (53.1% lower)
Avg TTFT Response Latency 650ms 420ms GPT-5.6 Sol (+230ms faster)
SWE-bench Verified (Coding) 70.3% 79.5% GPT-5.6 Sol (+9.2% lead)
Inference Value Score (IVR) 49.5 / 100 35.3 / 100 Claude 3.7 Sonnet (+14.2 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 3.7 Sonnet $5.45

$3/1M in · $15/1M out

GPT-5.6 Sol $67.50

$8/1M in · $32/1M 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 GPT-5.6 Sol

Choose GPT-5.6 Sol when you need High-order STEM research, autonomous enterprise executive workflow coordination, and heavy deep-reasoning pipelines. and prioritize OpenAI ecosystem integration at $8.00/1M tokens.

Related Questions & Decision Factors

Which is cheaper: Claude 3.7 Sonnet or GPT-5.6 Sol?

Claude 3.7 Sonnet is cheaper at $3.00/1M input tokens compared to $8.00/1M for GPT-5.6 Sol.

Which model has lower latency: Claude 3.7 Sonnet or GPT-5.6 Sol?

GPT-5.6 Sol delivers faster response times with an average TTFT of 420ms 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 GPT-5.6 Sol?

Choose GPT-5.6 Sol when you need High-order STEM research, autonomous enterprise executive workflow coordination, and heavy deep-reasoning pipelines. and prioritize OpenAI ecosystem integration at $8.00/1M tokens.

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