GPT-4o vs Grok 3 Mini
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: GPT-4o or Grok 3 Mini?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | GPT-4o | Grok 3 Mini | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $2.50 | $0.30 | Grok 3 Mini is 8.3x cheaper |
| Output Cost / 1M Tokens | $10.00 | $1.20 | Grok 3 Mini (88.0% lower) |
| Prompt Cache Read / 1M | $1.250 | $0.080 | Grok 3 Mini is 15.6x cheaper |
| Prompt Cache Write / 1M | $2.50 | $0.30 | Grok 3 Mini is 8.3x cheaper |
| Avg TTFT Response Latency | 280ms | 150ms | Grok 3 Mini (+130ms faster) |
| SWE-bench Verified (Coding) | 48% | 54% | Grok 3 Mini (+6.0% lead) |
| Inference Value Score (IVR) | 49.3 / 100 | 69.6 / 100 | Grok 3 Mini (+20.3 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens with prompt caching economics.
Estimated Monthly Spend
$2.50/1M in · $10.00/1M out
Prompt Cache: $1.250/1M read · $2.50/1M write
$0.30/1M in · $1.20/1M out
Prompt Cache: $0.080/1M read · $0.30/1M write
When to Choose GPT-4o
Choose GPT-4o when you need Flagship multimodal foundation model combining native text, vision, and audio processing for real-time enterprise AI. and have an infrastructure budget aligned with $2.50/1M tokens.
When to Choose Grok 3 Mini
Choose Grok 3 Mini when you need High-speed reasoning model providing rapid answers and code generation with chain-of-thought capabilities at edge pricing. and prioritize xAI ecosystem integration at $0.30/1M tokens.
Related Questions & Decision Factors
Which is cheaper: GPT-4o or Grok 3 Mini?
Grok 3 Mini is cheaper at $0.30/1M input tokens compared to $2.50/1M for GPT-4o.
Which model has lower latency: GPT-4o or Grok 3 Mini?
Grok 3 Mini delivers faster response times with an average TTFT of 150ms vs 280ms for GPT-4o.
When should you choose GPT-4o?
Choose GPT-4o when you need Flagship multimodal foundation model combining native text, vision, and audio processing for real-time enterprise AI. and have an infrastructure budget aligned with $2.50/1M tokens.
When should you choose Grok 3 Mini?
Choose Grok 3 Mini when you need High-speed reasoning model providing rapid answers and code generation with chain-of-thought capabilities at edge pricing. and prioritize xAI ecosystem integration at $0.30/1M tokens.