Grok 3 vs xAI Grok 4.6
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Grok 3 or xAI Grok 4.6?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Grok 3 | xAI Grok 4.6 | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $3.00 | $2.00 | xAI Grok 4.6 is 1.5x cheaper |
| Output Cost / 1M Tokens | $15.00 | $6.00 | xAI Grok 4.6 (150% lower) |
| Avg TTFT Response Latency | 850ms | 280ms | xAI Grok 4.6 (+570ms faster) |
| SWE-bench Verified (Coding) | 58.5% | 76.8% | xAI Grok 4.6 (+18.3% lead) |
| Inference Value Score (IVR) | 45.9 / 100 | 74.6 / 100 | xAI Grok 4.6 (+28.7 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
$2/1M in · $6/1M out
When to Choose Grok 3
Choose Grok 3 when you need Frontier scientific reasoning, real-time web exploration, and advanced mathematical problem solving. and have an infrastructure budget aligned with $3.00/1M tokens.
When to Choose xAI Grok 4.6
Choose xAI Grok 4.6 when you need Frontier real-time web & social intelligence, complex STEM proofs, competitive coding, and deep factual synthesis. and prioritize xAI ecosystem integration at $2.00/1M tokens.
Related Questions & Decision Factors
Which is cheaper: Grok 3 or xAI Grok 4.6?
xAI Grok 4.6 is cheaper at $2.00/1M input tokens compared to $3.00/1M for Grok 3.
Which model has lower latency: Grok 3 or xAI Grok 4.6?
xAI Grok 4.6 delivers faster response times with an average TTFT of 280ms vs 850ms for Grok 3.
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 have an infrastructure budget aligned with $3.00/1M tokens.
When should you choose xAI Grok 4.6?
Choose xAI Grok 4.6 when you need Frontier real-time web & social intelligence, complex STEM proofs, competitive coding, and deep factual synthesis. and prioritize xAI ecosystem integration at $2.00/1M tokens.