Claude 3.5 Sonnet vs GPT-5.6 Sol
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Claude 3.5 Sonnet or GPT-5.6 Sol?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Claude 3.5 Sonnet | GPT-5.6 Sol | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $3.00 | $8.00 | Claude 3.5 Sonnet is 2.7x cheaper |
| Output Cost / 1M Tokens | $15.00 | $32.00 | Claude 3.5 Sonnet (53.1% lower) |
| Avg TTFT Response Latency | 320ms | 420ms | Claude 3.5 Sonnet (+100ms faster) |
| SWE-bench Verified (Coding) | 63.7% | 79.5% | GPT-5.6 Sol (+15.8% lead) |
| Inference Value Score (IVR) | 46 / 100 | 35.3 / 100 | Claude 3.5 Sonnet (+10.7 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens.
Estimated Monthly Spend
$3/1M in · $15/1M out
$8/1M in · $32/1M out
When to Choose Claude 3.5 Sonnet
Choose Claude 3.5 Sonnet when you need Full-stack code generation, production AI agents, complex visual diagram parsing, and enterprise document workflows. and have an infrastructure budget aligned with $3.00/1M tokens.
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 3.5 Sonnet or GPT-5.6 Sol?
Claude 3.5 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 3.5 Sonnet or GPT-5.6 Sol?
Claude 3.5 Sonnet delivers faster response times with an average TTFT of 320ms vs 420ms for GPT-5.6 Sol.
When should you choose Claude 3.5 Sonnet?
Choose Claude 3.5 Sonnet when you need Full-stack code generation, production AI agents, complex visual diagram parsing, and enterprise document 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.