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Gemini 3.1 Pro Preview Custom Tools vs Grok 4.3
List-price comparison · Gemini 3.1 Pro Preview Custom Tools details · Grok 4.3 details
For a typical workload (100,000 requests / mo), Grok 4.3 costs 65% less — $250.00/mo vs $720.00/mo.
| Gemini 3.1 Pro Preview Custom Tools | Grok 4.3 | |
|---|---|---|
| Input / 1M tokens | $2.00 | $1.25 |
| Output / 1M tokens | $12.00 | $2.50 |
| Typical request (1,200 in + 400 out) | $0.0072 | $0.0025 |
| Context window | 1,048,756 tokens | 1M tokens |
| Max output | 65,536 tokens | — |
| Tier | Flagship | Flagship |
| Provider | xAI |
Projected monthly cost
1,000 requests / month$7.20 vs $2.5010,000 requests / month$72.00 vs $25.00100,000 requests / month$720.00 vs $250.00
Rows open both models in the calculator — adjust volume and token counts there.
Gemini 3.1 Pro Preview Custom Tools
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Grok 4.3
Strong real-time knowledge via X/Twitter integration and competitive general reasoning at a lower price than other flagship models.
Smaller third-party ecosystem and fewer enterprise compliance certifications than OpenAI/Anthropic/Google offerings.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.