Hermes 4 405B
Nous ResearchReleased Aug 26, 2025hermes-4-405b
- Reasoning
- yes
- Context
- 128k tokens
- API features
- structured outputs, JSON mode, logprobs
Read Oct 23, 06:00 UTC from the hosts' published offers and OpenRouter, spec sheet from Nous Research
| Provider | Input | Output | Cache ↑ | tok/s | First token | Uptime 24h | Checked |
|---|---|---|---|---|---|---|---|
| Nebius | $1.00 | $3.00 | — | 42 | 0.38 s | 100% | Oct 23 |
1 provider · prices per million tokens, read Oct 23, 06:00 UTC · speed: OpenRouter, median of the last 30 min, read Oct 23, 06:00 UTC · uptime: OpenRouter, last 24 h
| Provider | Weights | Context | Max output | Tools | Structured outputs | Reasoning |
|---|---|---|---|---|---|---|
| Nebius | fp8 | 128K | — | no | yes | yes |
As served by each host and declared to OpenRouter; not verified by us · weights: the precision the host declares
Hermes 4 405B spec sheet, field by field, with sources
Hermes 4 405B spec sheetmaker-declared
What the maker declares about the model itself — read from its own weights repository and documentation, not from any host. What each endpoint actually serves is in the pricing above: the two can differ, and both are true.
- Context window
- to verify
- Parameters
- to verify
- Active experts
- to verify
- Weight precision
- to verify
- License
- to verifyScope: the licence on the published weights, and nothing else. It is not the maker's acceptable-use policy, which is a separate document, and it is not the contract you sign with whichever host you call — hosts set their own terms, which this index does not read.
- Knowledge cutoff
- to verify
- Modalities
- to verify
- Max output (official)
- to verify
- Release date
- to verify≈ August 26, 2025 third-party catalogue — not the maker's figure
- Maker lifecycle status
- to verify
no maker source read yet · 0 of 10 fields published by the maker
| Provider | Chatbot 1,000 in / 500 out | RAG / long context 8,000 in / 500 out | Batch summarize 4,000 in / 1,000 out |
|---|---|---|---|
| Nebius | $2.50 | $9.50 | $7.00 |
What each host bills for 1,000 requests of a representative job
Your own workload
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