GPT-5.6 Sol vs GPT-5.6 Terra
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: GPT-5.6 Sol or GPT-5.6 Terra?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | GPT-5.6 Sol | GPT-5.6 Terra | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $8.00 | $1.50 | GPT-5.6 Terra is 5.3x cheaper |
| Output Cost / 1M Tokens | $32.00 | $6.00 | GPT-5.6 Terra (433.3% lower) |
| Avg TTFT Response Latency | 420ms | 210ms | GPT-5.6 Terra (+210ms faster) |
| SWE-bench Verified (Coding) | 79.5% | 65.4% | GPT-5.6 Sol (+14.1% lead) |
| Inference Value Score (IVR) | 35.3 / 100 | 72.5 / 100 | GPT-5.6 Terra (+37.2 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens.
Estimated Monthly Spend
$8/1M in · $32/1M out
$1.5/1M in · $6/1M out
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 have an infrastructure budget aligned with $8.00/1M 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: GPT-5.6 Sol or GPT-5.6 Terra?
GPT-5.6 Terra is cheaper at $1.50/1M input tokens compared to $8.00/1M for GPT-5.6 Sol.
Which model has lower latency: GPT-5.6 Sol or GPT-5.6 Terra?
GPT-5.6 Terra delivers faster response times with an average TTFT of 210ms vs 420ms for GPT-5.6 Sol.
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 have an infrastructure budget aligned with $8.00/1M 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.