GPT-4o-mini vs Grok 3 Mini Fast
API pricing, context window and capabilities for GPT-4o-mini and Grok 3 Mini Fast, side by side. Prices are the cheapest serving route per 1M tokens, verified against LiteLLM and OpenRouter.
Verdict
computed from the published numbersGPT-4o-mini wins on price. Benchmark data is unavailable for one or both models.
Price
GPT-4o-mini
Coding
Not called
Intelligence
Not called
Context window
Tied
Key takeaways
who wins on what, from the published numbersGPT-4o-mini wins
- Cheaper input ($0.15 vs $0.60 /1M)
- Cheaper output ($0.60 vs $4.00 /1M)
- More serving providers (5 vs 2)
- Supports vision
- Supports structured output
Grok 3 Mini Fast wins
- Higher max output (16K vs 131K)
- Has reasoning mode
- Has web search
Cheaper overall
GPT-4o-mini
$0.15 + $0.60 /1M
Larger context
Tied
More providers
GPT-4o-mini
5 providers
Pricing & specs
cheapest serving route · per 1M tokens| GPT-4o-mini | Grok 3 Mini Fast | |
|---|---|---|
| Input $/1M | $0.15 best | $0.60 |
| Output $/1M | $0.60 best | $4.00 |
| Context window | 131K | 131K |
| Max output | 16K | 131K best |
| Serving providers | 5 best | 2 |
| Released | 2024-07-18 | n/a |
Benchmarks
Artificial Analysis indices, side by side| GPT-4o-mini | Grok 3 Mini Fast | |
|---|---|---|
| Intelligence | 6.9 | Not available |
| Coding | 11.4 | Not available |
| GPQA Diamond | 43% | Not available |
| Output speed | 47 t/s | Not available |
| Latency (TTFT) | 6.68s | Not available |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GPT-4o-mini
via Azure
$1.35
Grok 3 Mini Fast
via xAI
$7.00
Capabilities
feature support, side by side| Feature | GPT-4o-mini | Grok 3 Mini Fast |
|---|---|---|
| Vision | ✓ | — |
| Tool use | ✓ | ✓ |
| Reasoning | — | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | — |
| Web search | — | ✓ |
Related comparisons
Frequently asked questions
Which is cheaper, GPT-4o-mini or Grok 3 Mini Fast?
GPT-4o-mini is cheaper for input ($0.15 vs $0.60 per 1M tokens). GPT-4o-mini is cheaper for output ($0.60 vs $4.00 per 1M tokens).
What is the context window difference between GPT-4o-mini and Grok 3 Mini Fast?
Both GPT-4o-mini and Grok 3 Mini Fast have about a 131K-token context window.
Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily
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