Cheapest GPT-4.1 API: Tokemart is 94% below the official price
GPT-4.1 costs $2.00/$8.00 per 1M tokens from OpenAI. The cheapest quote is Tokemart: $0.129 in, $0.515 out. Full table and buying checklist below.
| # | Provider | 1M input | 1M output | Discount | Tokens per $100 |
|---|---|---|---|---|---|
| — | Official list | $2.00 | $8.00 | 0% | 33.3M |
| 1 | Tokemartdemo | $0.129 | $0.515 | −94% | 518M |
| 2 | SwiftRoutedemo | $0.149 | $0.594 | −93% | 449M |
| 3 | PromptPortdemo | $0.254 | $1.01 | −87% | 263M |
| 4 | ModelMilldemo | $0.300 | $1.20 | −85% | 222M |
| 5 | APIBridgedemo | $0.562 | $2.25 | −72% | 119M |
| 6 | FluxAPIdemo | $0.932 | $3.73 | −53% | 71.5M |
| 7 | RelayOnedemo | $1.19 | $4.75 | −41% | 56.1M |
| 8 | ByteGatedemo | $1.30 | $5.20 | −35% | 51.3M |
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.