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Hermes 3 405B Instruct API pricing
As of October 21, 2026, Nous Hermes 3 405B Instruct costs $1.00 per million input tokens and $1.00 per million output tokens through OpenRouter.
Hermes 3 405B Instruct benchmarks and specs · Every Nous Research model's price
- Input, per million tokens$1.00
- Output, per million tokens$1.00
- Cached input, per millionNo cache price listed
- Context window131K tokens
- Max output16K tokens
- Output speedNot measured
What a request costs
Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.
| Workload | Tokens | One request | 1,000 requests | Fits the context window |
|---|---|---|---|---|
| Chat turn | 1K input + 500 output tokens | $0.0015 | $1.50 | Yes |
| Repository review | 50K input + 3K output tokens | $0.053 | $53.00 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.210 | $210.00 | No, it would need splitting |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | Not computable | Not computable |
Price history
We read this price every day and have since October 15, 2026. It has not changed yet; any change will be listed here with its date.
- October 15, 2026 First recorded: $1.00 input, $1.00 output
Cheaper models as good as Hermes 3 405B Instruct
Hermes 3 405B Instruct has no overall or coding score, so we make no quality claim against it.
Hermes 3 405B Instruct pricing questions
- How much does Hermes 3 405B Instruct cost per million tokens?
- $1.00 per million input tokens and $1.00 per million output tokens, as listed on OpenRouter on October 21, 2026.
- Does Hermes 3 405B Instruct support prompt caching?
- OpenRouter lists no cached input price for this model, so assume every input token is billed at the full rate.
- Has the price of Hermes 3 405B Instruct changed?
- Not since we started recording it daily on October 15, 2026.