Estimate streaming AI spend for chatbots, assistants, and live generation flows.
Direct answer
Use this calculator when you need to price a live chat or assistant flow. Streaming does not change token price, but it changes perceived speed, so the practical optimization is to keep output short and reserve premium models for the turns that truly need them.
Calculate API costs for real-time streaming applications. Compare models for chatbots, assistants, and live generation.
| Model | Input/1M | Output/1M | Daily Cost | Monthly Cost | Annual Cost |
|---|---|---|---|---|---|
| Gemini 1.5 Flash | $0.075 | $0.3 | $0.10 | $2.93 | $35.59 |
| GPT-4o-mini | $0.15 | $0.6 | $0.20 | $5.85 | $71.17 |
| GPT-5.4 nano | $0.2 | $1.25 | $0.35 | $10.50 | $127.75 |
| DeepSeek V3 | $0.27 | $1.1 | $0.36 | $10.65 | $129.58 |
| GPT-3.5-turbo | $0.5 | $1.5 | $0.55 | $16.50 | $200.75 |
| Claude Haiku 3.5 | $0.8 | $4 | $1.20 | $36.00 | $438.00 |
| GPT-5.4 mini | $0.75 | $4.5 | $1.27 | $38.25 | $465.37 |
| Claude Haiku 4.5 | $1 | $5 | $1.50 | $45.00 | $547.50 |
| Gemini 1.5 Pro | $3.5 | $10.5 | $3.85 | $115.50 | $1405.25 |
| GPT-5.4 | $2.5 | $15 | $4.25 | $127.50 | $1551.25 |
| Claude Sonnet 4.6 | $3 | $15 | $4.50 | $135.00 | $1642.50 |
| Claude Sonnet 4 | $3 | $15 | $4.50 | $135.00 | $1642.50 |
| Claude Sonnet 3.7 | $3 | $15 | $4.50 | $135.00 | $1642.50 |
| GPT-4o | $5 | $15 | $5.50 | $165.00 | $2007.50 |
| Claude Opus 4 | $15 | $75 | $22.50 | $675.00 | $8212.50 |