How much does a customer support agent cost on GPT-6.1 Sol?
Running a support agent that looks up the help center and order data before answering on GPT-6.1 Sol costs about $5,764/month for 2,000 users × 2 tasks/day: that's $2.88 per user and $48.03 per 1,000 tasks.
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Assumptions
- 2,000 users × 2 tasks/day (120,000 per month)
- System prompt 1,500 tokens, retrieved context 3,000 tokens, user input 120, output 300 tokens
- Agent loop: 4 LLM calls per task, 1 tool call(s) per step at 800 tokens each; context is re-sent every step
- Prompt cache hit rate 70%
- GPT-6.1 Sol list price: $2/1M input, $10/1M output, $0.1/1M cached input; context window 1,050,000 tokens
How GPT-6.1 Sol compares for a customer support agent
8 of 11 other popular models are cheaper for this workload. Cheapest isn't always best: check the quality index, and consider routing easy requests to a cheap model and only hard ones to a frontier model.
| Model | Quality | Monthly | Per user |
|---|---|---|---|
| DeepSeek V4 Flash 0423 | 24.4 | $227 | $0.11 |
| Claude Haiku 5.5 | 43.4 | $294 | $0.15 |
| DeepSeek V4 Pro 0423 | 30.4 | $916 | $0.46 |
| Gemini 3.8 Flash | 40.9 | $1,943 | $0.97 |
| GPT-5.4 Mini | 24.1 | $2,221 | $1.11 |
| Grok 4.3 | 24.9 | $3,066 | $1.53 |
| Gemini 4 Argon | 52.6 | $4,640 | $2.32 |
| Grok 4.7 | 46.4 | $5,398 | $2.70 |
| GPT-6.1 Sol | 51.8 | $5,764 | $2.88 |
| Claude Sonnet 5.5 | 56 | $5,764 | $2.88 |
| Claude Opus 5.5 | 57.6 | $11,527 | $5.76 |
| GPT-5.5 | 38.4 | $14,805 | $7.40 |
More GPT-6.1 Sol cost guides
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Prices: OpenRouter list prices (USD per 1M tokens), updated 2026-10-15. Estimates only; a month is 30 days. See how the math works.