AI API costs can make or break your project. With providers charging anywhere from $0.14 to $60 per million tokens, choosing the right API is a critical business decision.
We compared every major AI API provider to find the cheapest options for different use cases.
| Provider | Model | Input (per 1M) | Output (per 1M) | Quality |
|---|---|---|---|---|
| DeepSeek | V4-Flash | $0.14 | $0.28 | ⭐⭐⭐⭐ |
| OpenAI | GPT-4o-mini | $0.15 | $0.60 | ⭐⭐⭐⭐ |
| DeepSeek | V4-Pro | $0.435 | $0.87 | ⭐⭐⭐⭐⭐ |
| Gemini 1.5 Flash | $0.075 | $0.30 | ⭐⭐⭐⭐ | |
| Alibaba | Qwen-Plus | $0.40 | $1.20 | ⭐⭐⭐⭐ |
| Alibaba | Qwen-Max | $1.60 | $6.40 | ⭐⭐⭐⭐⭐ |
| Anthropic | Claude 3.5 Sonnet | $3.00 | $15.00 | ⭐⭐⭐⭐⭐ |
| OpenAI | GPT-4o | $15.00 | $60.00 | ⭐⭐⭐⭐⭐ |
| Anthropic | Claude 3 Opus | $15.00 | $75.00 | ⭐⭐⭐⭐⭐ |
Winner: DeepSeek V4-Flash ($0.14/M)
For conversational AI, DeepSeek V4-Flash offers the best balance of quality and cost. It handles multi-turn conversations smoothly and supports system prompts.
Winner: DeepSeek V4-Flash ($0.14/M)
DeepSeek scores 90.2% on HumanEval (code generation benchmark), matching GPT-4o exactly. At 1/100th the cost, it's the obvious choice for coding assistants.
Winner: DeepSeek V4-Pro ($0.435/M)
For long-form content, the Pro model's higher quality output is worth the slight price increase. It produces more natural, engaging writing.
Winner: DeepSeek V4-Pro ($0.435/M)
Complex reasoning tasks benefit from the Pro model's enhanced capabilities. It outperforms GPT-4o on the MATH benchmark.
Winner: DeepSeek V4-Flash ($0.14/M)
DeepSeek significantly outperforms all Western models on Chinese language understanding and generation.
Winner: GPT-4o ($15/M) or Claude 3 Opus ($15/M)
If cost is no concern and you need absolute peak performance, GPT-4o and Claude 3 Opus remain top choices. But for 99% of use cases, DeepSeek is sufficient.
Here's what different usage levels cost per month:
| Usage Level | GPT-4o | DeepSeek V4-Flash | Savings |
|---|---|---|---|
| Light (1K msgs/day) | $19.50 | $0.09 | $19.41 (99.5%) |
| Medium (10K msgs/day) | $195.00 | $0.91 | $194.09 (99.5%) |
| Heavy (100K msgs/day) | $1,950.00 | $9.10 | $1,940.90 (99.5%) |
| Enterprise (1M msgs/day) | $19,500.00 | $91.00 | $19,409.00 (99.5%) |
The cheapest APIs are Chinese, but accessing them from abroad requires navigating payment barriers. Most Chinese AI platforms only accept Alipay or WeChat Pay.
We handle registration, payment, and API recharge for you. Pay via PayPal, get API credits within 24 hours.
Get API Credits →The cheapest AI API in 2026 is DeepSeek V4-Flash at $0.14/M tokens. It offers GPT-4o quality at 1/100th the cost. For most developers, there's simply no reason to pay more.
The only barrier is payment — and we solve that at ChinaAI.tools.