DeepSeek-V4-Flash-0731 vs Hermes-4-405B
Specs, VRAM requirements and download trends — updated 24 October 2026.
deepseek-ai · A · Open weights
Params
304.2 B
Context
1,048,576
30d
4.3 M
mit · commercial OK
NousResearch · B · Open weights
Params
405.9 B
Context
131,072
30d
1 K
llama3 licence · conditional
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | DeepSeek-V4-Flash-0731 | Hermes-4-405B |
|---|---|---|
| Deployment | Open weights · also via API | Open weights · also via API |
| Parameters | 304.2 B | 405.9 B |
| Architecture | DeepseekV4ForCausalLM | LlamaForCausalLM |
| Context length | 1,048,576 | 131,072 |
| Licence | mit | llama3 |
| Commercial use | Allowed | Conditional |
| Languages | — | 1 |
| Downloads 30d | 4,348,313 | 1,216 |
| Downloads all time | 11.9 M | 8 K |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2026-07-31 | 2025-08-06 |
| API input price / 1M tokens | $0.044 | $1.00 |
| API output price / 1M tokens | $0.13 | $3.00 |
| Est. cost per 1M input + 1M output tokens | $0.18 | $4.00 |
| Cached input / 1M tokens | $0.0014 | — |
| AA Intelligence Index | 34.3 | 7.5 |
| AA Coding Index | 69.1 | — |
| AA Agentic Index | 41 | — |
| Max output tokens | 131,072 | 117,964 |
| API providers | 22 | 1 |
| Tool calling | Yes | No |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
DeepSeek-V4-Flash-0731
$0.18
Hermes-4-405B
$4.00
DeepSeek-V4-Flash-0731 is 22.5× cheaper at list price.
Download trend
Daily snapshots, last 82 days (4 Aug – 24 Oct)
4.7 M1 K
DeepSeek-V4-Flash-0731
Hermes-4-405B
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Hermes-4-405B · fp16 @ 128K ctx
1,867.4 GB / 24 GB
DeepSeek-V4-Flash-0731 · fp16 @ 1024K ctx
6,024.3 GB / 24 GB