Hermes 4 405B
Hermes 4 405B is Nous Research's language model with a 131K context window and up to 118K output tokens, available from 2 providers, starting at $1.00 / 1M input and $3.00 / 1M output. A 405B-parameter hybrid reasoning LLM from Nous Research built on Llama 3.1, capable of deliberate internal reasoning or direct response generation.
| Specifications | |
|---|---|
nousresearch-hermes-4-405b | |
| Language | |
| Active | |
| Nous Research | |
| 131K tokens | |
| 118K tokens | |
| Text | |
| Text | |
| default | |
| 405B | |
| · 1 year ago | |
| · 2 years ago | |
Capabilities
Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities3/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·
Pricing by Provider
US Dollar ($)
Per 1M tokens
| Provider | Standard | |
|---|---|---|
| Input $ / 1M | Output $ / 1M | |
| $1.00 | $3.00 | |
| $1.00 | $3.00 | |
Cost Calculator
US Dollar ($)
Preset:
Cheapest Instances to Run It
Cloud GPU instances that can host Hermes 4 405B, ranked by cheapest on-demand price. The model needs about 972 GB of GPU memory at FP16 precision (estimated from its parameter count), so treat the fit as guidance rather than a guarantee.
All clouds
FP16 (full precision)
US Dollar ($)
Instance | Cloud | GPU | VRAM | Price | Cheapest region | |
|---|---|---|---|---|---|---|
| Standard_ND96is_MI300X_v5 |  Azure | 8× AMD Instinct MI300X GPU (192GB) | 1536 GB | $48.00/hr | ||
| Standard_ND96isr_MI300X_v5 | Azure | 8× AMD Instinct MI300X | 1536 GB | $48.00/hr | ||
| p5en.48xlarge |  AWS | 8× H200 | 1128 GB | $63.30/hr | ||
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| Hermes 3 8B TEE | — | 16K | $0.150 | $0.600 | Available |
| Hermes 4 405B | 131K | $1.00 | $3.00 | Current | |
| Hermes 4 70B | 131K | — | — | Available | |
| DeepHermes 3 Mistral 24B Preview | — | — | — | — | Available |
| DeepHermes 3 Llama 3.1 8B Preview | — | — | — | — | Available |
| Hermes 3 405B | — | 131K | $0.800 | $0.800 | Available |
| Hermes 3 70B | — | 131K | $0.120 | $0.300 | Available |
| Hermes 3 8B | — | 131K | $0.025 | $0.040 | Available |