Cheapest GPT-6 Astra API: XCLI is 98% below the official price
GPT-6 Astra costs $10/$50 per 1M tokens from OpenAI. The cheapest quote is XCLI: $0.220 in, $1.10 out. Full table and buying checklist below.
| # | Provider | 1M input | 1M output | Discount | Tokens per $100 |
|---|---|---|---|---|---|
| — | Official list | $10.00 | $50.00 | 0% | 6.00M |
| 1 | $0.220 | $1.10 | −98% | 273M | |
| 2 | $0.500 | $2.50 | −95% | 120M | |
| 3 | $0.600 | $3.00 | −94% | 100M | |
| 4 | $0.750 | $3.75 | −93% | 80.0M | |
| 5 | $1.50 | $7.50 | −85% | 40.0M | |
| 6 | $1.50 | $7.50 | −85% | 40.0M | |
| 7 | $7.34 | $36.72 | −27% | 8.17M |
Tokens per $100 assume a “code” mix: 5 input tokens per output token. Prices are crawled; verify them on the provider page before buying.
What to check before buying
- Test the key with the free API checker — it verifies the endpoint responds, without sending tokens.
- Compare the blended cost for your workload, not just the input price: output tokens dominate in agent workloads.
- Check uptime and minimum top-up: the cheapest provider is useless if it is down half the day.