Hermes 4 405B API Cost Calculator
Estimate your monthly API costs for Hermes 4 405B from Nousresearch.
Pricing per 1M tokens
Input
$1.00
Output
$3.00
131.1K contextStreaming
Pricing last verified: Mar 21, 2026
30-Day Price History
Solid line: input price · Dashed line: output price
Estimate Your Costs
What are you building?
Cost Breakdown
Input cost/request$0.000500
Output cost/request$0.000900
Cost per request$0.001400
Daily cost (1,000 requests)$1.40
Monthly estimate$42.00
Annual estimate$504.00
Compare with Similar Models
| Model | Input/1M | Output/1M |
|---|---|---|
| Hermes 3 405B Instruct Nousresearch | $1.00 | $1.00 |
| Hermes 3 70B Instruct Nousresearch | $0.3000 | $0.3000 |
| Hermes 4 70B Nousresearch | $0.1300 | $0.4000 |
| Hermes 2 Pro - Llama-3 8B Nousresearch | $0.1400 | $0.1400 |
| Hermes 3 405B Instruct (free) Nousresearch | $0.00 | $0.00 |
Frequently Asked Questions
How much does Hermes 4 405B cost per token?
Hermes 4 405B is priced at $1.00 per 1M input tokens and $3.00 per 1M output tokens. Use the calculator above to estimate your monthly costs based on your usage volume.
What is the context window for Hermes 4 405B?
Hermes 4 405B has a context window of 131.1K tokens (131,072 tokens).
How does Hermes 4 405B compare to similar models?
Hermes 4 405B costs $1.00 input and $3.00 output per 1M tokens. Hermes 3 405B Instruct (free) is less expensive at $0.00 input and $0.00 output per 1M tokens. See the "Compare with Similar Models" table above, or visit the Hermes 3 405B Instruct (free) page at /tools/cost-calculator/nousresearch/hermes-3-llama-3-1-405b-free.