Hermes-4-405B
hermes-4-405b
Reasoning model for deliberate analysis, multi-step problem solving, and tool use
Specification
most-agreed values
Context
131K
Max output
8K
Released
2025-08-26
Knowledge cutoff
2024-08-31
Retires
—
Open weights
yes
Input
text
Output
text
Price
US dollars per million tokens · most-agreed
Input
$1.00
Output
$3.00
Cache read
$1.00
Available from 7 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| nano-gpt · nousresearch | $0.30 | $1.20 | $0.15 | — | 128K | 8K | — |
| nano-gpt · thinking | $0.30 | $1.20 | $0.15 | — | 128K | 8K | — |
| cortecs | $0.996 | $2.989 | — | — | 128K | 128K | — |
| kilo · nousresearch | $1.00 | $3.00 | $0.20 | — | 131K | 118K | — |
| nebius | $1.00 | $3.00 | — | — | 131K | 131K | — |
| nebius · nousresearch | $1.00 | $3.00 | $1.00 | — | 131K | 8K | — |
| openrouter · nousresearch | $1.00 | $3.00 | $0.20 | — | 131K | 118K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-02 | nebius · nousresearch | Cache read | $0.10 |
| 2026-10-22 | nebius · nousresearch | Cache read | $1.00 |