Claude 3.5 Sonnet vs OpenAI GPT-4o
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Claude 3.5 Sonnet or OpenAI GPT-4o?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Claude 3.5 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 | 320ms | 280ms | OpenAI GPT-4o (+40ms faster) |
| SWE-bench Verified (Coding) | 63.7% | 38.8% | Claude 3.5 Sonnet (+24.9% lead) |
| Inference Value Score (IVR) | 46 / 100 | 45.5 / 100 | Claude 3.5 Sonnet (+0.5 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
$2.5/1M in · $10/1M 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 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 3.5 Sonnet or OpenAI GPT-4o?
OpenAI GPT-4o is cheaper at $2.50/1M input tokens compared to $3.00/1M for Claude 3.5 Sonnet.
Which model has lower latency: Claude 3.5 Sonnet or OpenAI GPT-4o?
OpenAI GPT-4o delivers faster response times with an average TTFT of 280ms vs 320ms for Claude 3.5 Sonnet.
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 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.