Claude Opus 5 vs Grok 3
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Claude Opus 5 or Grok 3?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Claude Opus 5 | Grok 3 | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $5.00 | $3.00 | Grok 3 is 1.7x cheaper |
| Output Cost / 1M Tokens | $25.00 | $15.00 | Grok 3 (66.7% lower) |
| Avg TTFT Response Latency | 340ms | 850ms | Claude Opus 5 (+510ms faster) |
| SWE-bench Verified (Coding) | 82.4% | 58.5% | Claude Opus 5 (+23.9% lead) |
| Inference Value Score (IVR) | 42.7 / 100 | 45.9 / 100 | Grok 3 (+3.2 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens.
Estimated Monthly Spend
$5/1M in · $25/1M out
$3/1M in · $15/1M out
When to Choose Claude Opus 5
Choose Claude Opus 5 when you need Pinnacle autonomous software architecture, whole-system enterprise codebases, PhD-level scientific synthesis, and complex multi-agent delegation. and have an infrastructure budget aligned with $5.00/1M tokens.
When to Choose Grok 3
Choose Grok 3 when you need Frontier scientific reasoning, real-time web exploration, and advanced mathematical problem solving. and prioritize xAI ecosystem integration at $3.00/1M tokens.
Related Questions & Decision Factors
Which is cheaper: Claude Opus 5 or Grok 3?
Grok 3 is cheaper at $3.00/1M input tokens compared to $5.00/1M for Claude Opus 5.
Which model has lower latency: Claude Opus 5 or Grok 3?
Claude Opus 5 delivers faster response times with an average TTFT of 340ms vs 850ms for Grok 3.
When should you choose Claude Opus 5?
Choose Claude Opus 5 when you need Pinnacle autonomous software architecture, whole-system enterprise codebases, PhD-level scientific synthesis, and complex multi-agent delegation. and have an infrastructure budget aligned with $5.00/1M tokens.
When should you choose Grok 3?
Choose Grok 3 when you need Frontier scientific reasoning, real-time web exploration, and advanced mathematical problem solving. and prioritize xAI ecosystem integration at $3.00/1M tokens.