Simulating realistic Customer support chatbot parameters (3,500 in / 350 out with 70% cache reuse). Qwen3 Coder Flash (OpenRouter) delivers a 52% cost reduction over Devstral 2 (2512) (OpenRouter).
| Traffic Volume Tier | Devstral 2 (2512) (OpenRouter) Monthly | Qwen3 Coder Flash (OpenRouter) Monthly | Monthly Savings by picking Qwen3 Coder Flash (OpenRouter) |
|---|---|---|---|
| 1,000 reqs/mo (Dev/Testing) | $1.34 | $0.6416 | Save $0.6982 / mo |
| 10,000 reqs/mo (Small App) | $13.398 | $6.416 | Save $6.983 / mo |
| 100,000 reqs/mo (Growth Production) | $133.98 | $64.155 | Save $69.825 / mo |
| 1,000,000 reqs/mo (Scale SaaS) | $1,339.80 | $641.55 | Save $698.25 / mo |
Qwen3 Coder Flash (OpenRouter) is 52% cheaper for Customer support chatbot workloads. At standard Customer support chatbot parameter ratios (3,500 input tokens, 350 output tokens, 70% cache hit), Qwen3 Coder Flash (OpenRouter) costs $0.000642 per request compared to $0.00134 on Devstral 2 (2512) (OpenRouter).
Devstral 2 (2512) (OpenRouter) offers a context window of 262,144 tokens (max output: 209,715), while Qwen3 Coder Flash (OpenRouter) offers 1,000,000 tokens (max output: 65,536).
At 100,000 requests per month, using Qwen3 Coder Flash (OpenRouter) saves $69.825 every month (or $837.90 annually) compared to Devstral 2 (2512) (OpenRouter).
Cache the system prompt and static documentation chunks — cached input is often 4–10× cheaper. Route simple FAQ turns to a nano-tier model and escalate only complex tickets. Cap max_output per reply; support answers rarely need more than a few hundred tokens.