OpenAI alternatives
First-party API for GPT models. Below are other provider types teams commonly shortlist when they review OpenAI.
Data notice: This page compares structural differences only. Live token prices are not published here yet — check each provider's official pricing page linked in the table before making a purchasing decision.
Comparison
| Dimension | OpenAI | OpenRouter | Together AI | Fireworks AI |
|---|---|---|---|---|
| Provider type | Model vendor | Aggregator | Inference cloud | Inference cloud |
| Model coverage | GPT family | Many providers, one endpoint | Open-weight models | Open-weight models |
| Billing model | Pay-per-token | Pay-as-you-go | Pay-per-token | Pay-per-token |
| API format | Native + OpenAI SDK | OpenAI-compatible | OpenAI-compatible | OpenAI-compatible |
| Region | Global | Global | US / Global | US / Global |
| Official pricing | official page → | official page → | official page → | official page → |
Shortlist checklist
- Verify the exact model and context window on the official OpenAI pricing page.
- Check whether your SDK needs an OpenAI-compatible base URL.
- Run a latency test from Vietnam / Southeast Asia if that's where your users are.
- Confirm the contracting entity, invoice format and refund terms.
Looking for API access with Vietnam routing and USDT / Alipay settlement?
AIO Keys is our own service. It is listed in every comparison and clearly marked with an asterisk.
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