Why I Stopped Picking AI Models by Hype and Started Picking by Speed

Short summary

A freelancer benchmarked 15 AI models across latency and cost after nearly losing a $14k retainer due to slow response times. Step-3.5-Flash leads at 120ms TTFT with 80 tokens/sec for $0.15/M; Qwen3-8B offers budget options at $0.01/M. Includes transparent test methodology, Python code, and practical guidance for builders.

• •Benchmarked 15 models for speed (TTFT + tokens/sec) using real test methodology
• •Step-3.5-Flash is fastest ($0.15/M); Qwen3-8B is cheapest ($0.01/M)
• •Actionable guidance for selecting models based on latency and budget constraints

Generated with AI, which can make mistakes.