Cheapest GPT-6 Sol API: XCLI is 98% below the official price
GPT-6 Sol costs $2.00/$10.00 per 1M tokens from OpenAI. The lowest quote in the index is XCLI: $0.044 in, $0.220 out. Full table and buying checklist below.
| # | Provider | 1M input | 1M output | vs list | Tokens per $100 |
|---|---|---|---|---|---|
| — | Official list | $2.00 | $10.00 | 0% | 30.0M |
| 1 | $0.044 | $0.220 | −98% | 1.36B | |
| 2 | $0.120 | $0.600 | −94% | 500M | |
| 3 | $0.180 | $0.900 | −91% | 333M | |
| 4 | $0.200 | $1.00 | −90% | 300M | |
| 5 | $0.300 | $1.50 | −85% | 200M | |
| 6 | $0.300 | $1.50 | −85% | 200M | |
| 7 | $0.640 | $3.20 | −68% | 93.8M | |
| 8 | $1.47 | $7.35 | −26% | 40.8M |
Scroll the table sideways to see every price.
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.