Hermes 4 405B with Jev
Hermes 4 405B is a model from Nous, released 2025-08-26. It costs $1.00 per million input tokens and $3.00 per million output tokens, reads up to 131K tokens of context, and writes up to 117,964 tokens in one reply. Through llm11, set model to nousresearch/hermes-4-405b.
- Input price
- $1.00 / 1M
- Output price
- $3.00 / 1M
- Context window
- 131K tokens
- Max output
- 118K tokens
- Released
- 2025-08-26
- Accepts
- text
Read from the live catalogue and refreshed daily. At blended list price, 31% of the 332 priced models we can call cost more.
Using Hermes 4 405B with Jev
Jev is TypeSafe AI's System One model. It reads each request first and decides which model in your pool answers, with a calibrated confidence on that call. Hermes 4 405B does the answering when Jev sends it work, or when you name it yourself. At list price Hermes 4 405B falls in the llm11-balanced band, but no pack routes to it because Nous is not one of the labs the packs draw from. You can still pin it: pass nousresearch/hermes-4-405b as model and routing steps aside while verification still runs.
Jev is new, so we have not published results for Hermes 4 405B with and without it, and this page does not invent any. Every response comes with a receipt that names the model that answered and what it cost against your most expensive model, so you can measure the pairing on your own traffic.
What a request costs
List price arithmetic, the same sum a receipt does. llm11 adds nothing per request; the only fee is on buying credits.
| Request | Tokens in / out | One | A thousand |
|---|---|---|---|
| Short chat turn | 500 / 200 | $0.00110 | $1.10 |
| Question over retrieved documents | 4,000 / 500 | $0.00550 | $5.50 |
| Long document summary | 30,000 / 1,000 | $0.033 | $33.00 |
Cheaper models to try
The catalogue has no benchmark score for Hermes 4 405B, so this is a price ordering. It does not claim these answer as well.
| Model | Input / 1M | Output / 1M | Context | Released |
|---|---|---|---|---|
| DeepSeek DeepSeek V4 Pro 0813 | $0.475 | $4.20 | 1.05M | |
| Qwen Qwen3 Coder PlusRetires 2026-10-09 | $0.650 | $3.25 | 1M | |
| Qwen Qwen3 VL 235B A22B ThinkingRetires 2026-10-09 | $0.400 | $4.00 | 131K | |
| Qwen Qwen3.5 397B A17B | $0.550 | $3.50 | 262K |
Call it
Same OpenAI request shape. Naming the model pins it, so nothing is routed, and the answer is still checked.
python
from openai import OpenAI
client = OpenAI(base_url="https://www.llm11.com/v1", api_key="llm11_live_...")
res = client.chat.completions.create(
model="nousresearch/hermes-4-405b",
messages=[{"role": "user", "content": "Hello"}],
)More from Nous
| Model | Input / 1M | Output / 1M | Context | Released |
|---|---|---|---|---|
| Hermes 3 70B Instruct | $0.700 | $0.700 | 131K | |
| Hermes 3 405B Instruct | $1.00 | $1.00 | 131K |
Questions
- What is Hermes 4 405B with Jev?
- Jev is TypeSafe AI's System One model. It reads each request first and decides which model in your pool answers, with a calibrated confidence on that call. Hermes 4 405B does the answering when Jev sends it work, or when you name it yourself. At list price Hermes 4 405B falls in the llm11-balanced band, but no pack routes to it because Nous is not one of the labs the packs draw from. You can still pin it: pass nousresearch/hermes-4-405b as model and routing steps aside while verification still runs. Routing decisions are made by Jev, TypeSafe AI's System One model.
- Is Hermes 4 405B a System One model?
- No. Hermes 4 405B answers requests. The System One model is Jev, which decides which model answers each one, so the two do different jobs and llm11 uses both.
- How much does Hermes 4 405B cost?
- $1.00 per million input tokens and $3.00 per million output tokens. A 4,000 token prompt with a 500 token answer costs about $0.00550, so a thousand of them is about $5.50. llm11 passes provider list price through and charges 5% when you buy credits.
- What is the Hermes 4 405B context window?
- 131,072 tokens, with up to 117,964 tokens in a single reply.
- Does Hermes 4 405B support tool calling and structured output?
- The catalogue lists structured output and reasoning controls, but it does not list tool calling.
- Can I use Hermes 4 405B through llm11?
- Yes. Set model to nousresearch/hermes-4-405b on the OpenAI-compatible endpoint and the request goes to it directly, with verification still running.
- Does Jev route to Hermes 4 405B?
- Routing decisions are made by Jev, TypeSafe AI's System One model. At list price Hermes 4 405B falls in the llm11-balanced band, but no pack routes to it because Nous is not one of the labs the packs draw from. You can still pin it: pass nousresearch/hermes-4-405b as model and routing steps aside while verification still runs.
- What is a cheaper alternative to Hermes 4 405B?
- Nearest in price and below it: DeepSeek DeepSeek V4 Pro 0813 at $0.475 in and $4.20 out, Qwen Qwen3 Coder Plus at $0.650 in and $3.25 out and Qwen Qwen3 VL 235B A22B Thinking at $0.400 in and $4.00 out. The catalogue has no benchmark score for Hermes 4 405B, so this is a price ordering. It does not claim these answer as well.