OpenAI GPT-4o vs xAI Grok 4.6
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: OpenAI GPT-4o or xAI Grok 4.6?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | OpenAI GPT-4o | xAI Grok 4.6 | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $2.50 | $2.00 | xAI Grok 4.6 is 1.3x cheaper |
| Output Cost / 1M Tokens | $10.00 | $6.00 | xAI Grok 4.6 (66.7% lower) |
| Avg TTFT Response Latency | 280ms | 280ms | xAI Grok 4.6 (+0ms faster) |
| SWE-bench Verified (Coding) | 38.8% | 76.8% | xAI Grok 4.6 (+38.0% lead) |
| Inference Value Score (IVR) | 45.5 / 100 | 74.6 / 100 | xAI Grok 4.6 (+29.1 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens.
Estimated Monthly Spend
$2.5/1M in · $10/1M out
$2/1M in · $6/1M out
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 have an infrastructure budget aligned with $2.50/1M 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: OpenAI GPT-4o or xAI Grok 4.6?
xAI Grok 4.6 is cheaper at $2.00/1M input tokens compared to $2.50/1M for OpenAI GPT-4o.
Which model has lower latency: OpenAI GPT-4o or xAI Grok 4.6?
xAI Grok 4.6 delivers faster response times with an average TTFT of 280ms vs 280ms for OpenAI GPT-4o.
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 have an infrastructure budget aligned with $2.50/1M 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.