Grok 3 Mini vs OpenAI o3-mini
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Grok 3 Mini or OpenAI o3-mini?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Grok 3 Mini | OpenAI o3-mini | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $0.30 | $1.10 | Grok 3 Mini is 3.7x cheaper |
| Output Cost / 1M Tokens | $1.20 | $4.40 | Grok 3 Mini (72.7% lower) |
| Prompt Cache Read / 1M | $0.080 | $0.550 | Grok 3 Mini is 6.9x cheaper |
| Prompt Cache Write / 1M | $0.30 | $1.10 | Grok 3 Mini is 3.7x cheaper |
| Avg TTFT Response Latency | 150ms | 1250ms | Grok 3 Mini (+1100ms faster) |
| SWE-bench Verified (Coding) | 54% | 49.3% | Grok 3 Mini (+4.7% lead) |
| Inference Value Score (IVR) | 69.6 / 100 | 58.2 / 100 | Grok 3 Mini (+11.4 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
$0.30/1M in · $1.20/1M out
Prompt Cache: $0.080/1M read · $0.30/1M write
$1.10/1M in · $4.40/1M out
Prompt Cache: $0.550/1M read · $1.10/1M write
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 have an infrastructure budget aligned with $0.30/1M tokens.
When to Choose OpenAI o3-mini
Choose OpenAI o3-mini when you need High-throughput STEM reasoning, competitive coding, and low-latency algorithmic problem solving with configurable thinking effort. and prioritize OpenAI ecosystem integration at $1.10/1M tokens.
Related Questions & Decision Factors
Which is cheaper: Grok 3 Mini or OpenAI o3-mini?
Grok 3 Mini is cheaper at $0.30/1M input tokens compared to $1.10/1M for OpenAI o3-mini.
Which model has lower latency: Grok 3 Mini or OpenAI o3-mini?
Grok 3 Mini delivers faster response times with an average TTFT of 150ms vs 1250ms for OpenAI o3-mini.
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 have an infrastructure budget aligned with $0.30/1M tokens.
When should you choose OpenAI o3-mini?
Choose OpenAI o3-mini when you need High-throughput STEM reasoning, competitive coding, and low-latency algorithmic problem solving with configurable thinking effort. and prioritize OpenAI ecosystem integration at $1.10/1M tokens.