Dev.to
8/2/2026
Benchmark: 50 Prompts Across 8 AI APIs — Cost and Quality Results
Original: I Ran 8 AI APIs Through the Same 50 Prompts — Here's the Real Cost Breakdown
Short summary
The author ran 50 real-world prompts across 8 AI APIs and measured exact token counts, latency, quality, and cost. Qwen-Plus via NovAI was cheapest at $0.011 for 50 prompts with 3.9/5 quality, while Claude Sonnet 4.6 cost $0.287 with 4.7/5 quality—a 26x price gap for only 0.8 quality points. The gateway (NovAI, author's product) added zero overhead compared to DeepSeek's official API, though this self-promotion is disclosed upfront.
- •Qwen-Plus was 26x cheaper than Claude with only 0.8 quality gap on 50 prompts
- •DeepSeek via NovAI gateway showed identical token counts and negligible latency vs official API
- •Quality differences between budget and premium models are smaller than pricing pages suggest
Generated with AI, which can make mistakes.
Is this a good recommendation for you?
