Claude 3.5 Sonnet vs GPT-5.6 Terra
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Claude 3.5 Sonnet or GPT-5.6 Terra?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Claude 3.5 Sonnet | GPT-5.6 Terra | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $3.00 | $1.50 | GPT-5.6 Terra is 2.0x cheaper |
| Output Cost / 1M Tokens | $15.00 | $6.00 | GPT-5.6 Terra (150% lower) |
| Avg TTFT Response Latency | 320ms | 210ms | GPT-5.6 Terra (+110ms faster) |
| SWE-bench Verified (Coding) | 63.7% | 65.4% | GPT-5.6 Terra (+1.7% lead) |
| Inference Value Score (IVR) | 46 / 100 | 72.5 / 100 | GPT-5.6 Terra (+26.5 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
$1.5/1M in · $6/1M 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 Terra
Choose GPT-5.6 Terra when you need Mainstream production enterprise workflows, high-throughput developer copilots, and structured data synthesis. and prioritize OpenAI ecosystem integration at $1.50/1M tokens.
Related Questions & Decision Factors
Which is cheaper: Claude 3.5 Sonnet or GPT-5.6 Terra?
GPT-5.6 Terra is cheaper at $1.50/1M input tokens compared to $3.00/1M for Claude 3.5 Sonnet.
Which model has lower latency: Claude 3.5 Sonnet or GPT-5.6 Terra?
GPT-5.6 Terra delivers faster response times with an average TTFT of 210ms 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 GPT-5.6 Terra?
Choose GPT-5.6 Terra when you need Mainstream production enterprise workflows, high-throughput developer copilots, and structured data synthesis. and prioritize OpenAI ecosystem integration at $1.50/1M tokens.