Cheapest GPT-6 Astra Pro API: Polza.ai is 26% below the official price
GPT-6 Astra Pro costs $10.00/$50.00 per 1M tokens from OpenAI. The lowest quote in the index is Polza.ai: $7.35 in, $36.75 out. Full table and buying checklist below.
| # | Provider | 1M input | 1M output | vs list | Tokens per $100 |
|---|---|---|---|---|---|
| — | Official list | $10.00 | $50.00 | 0% | 6.00M |
| 1 | $7.35 | $36.75 | −26% | 8.16M |
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.