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Open all in the calculator — adjust volume and token counts →
For a typical workload (100,000 requests / mo), Grok 4.3 is the cheapest — 96% less than the priciest here ($250.00/mo vs $5,600.00/mo).
| Grok 4.3 | o3 Pro | |
|---|---|---|
| Input / 1M tokens | $1.25 | $20.00 |
| Output / 1M tokens | $2.50 | $80.00 |
| Typical request (1,200 in + 400 out) | $0.0025 | $0.056 |
| Context window | 1M tokens | 200k tokens |
| Max output | 900k tokens | 100k tokens |
| Quality score | 86/100 | 95/100 |
| Tier | Flagship | Flagship |
| Provider | xAI | OpenAI |
Projected monthly cost
| Requests / mo | Grok 4.3 | o3 Pro |
|---|---|---|
| 1,000 | $2.50 | $56.00 |
| 10,000 | $25.00 | $560.00 |
| 100,000 | $250.00 | $5,600.00 |
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.