DeepSeek-R1 vs DeepSeek-V4-Flash-0731
Specs, VRAM requirements and download trends — updated 10 November 2026.
deepseek-ai · A · Open weights
Params
684.5 B
Context
163,840
30d
1.6 M
mit · commercial OK
deepseek-ai · B · Open weights
Params
304.2 B
Context
1,048,576
30d
2.7 M
mit · commercial OK
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | DeepSeek-R1 | DeepSeek-V4-Flash-0731 |
|---|---|---|
| Deployment | Open weights · also via API | Open weights · also via API |
| Parameters | 684.5 B | 304.2 B |
| Architecture | DeepseekV3ForCausalLM | DeepseekV4ForCausalLM |
| Context length | 163,840 | 1,048,576 |
| Licence | mit | mit |
| Commercial use | Allowed | Allowed |
| Languages | — | — |
| Downloads 30d | 1,618,845 | 2,697,621 |
| Downloads all time | 51.3 M | 13.2 M |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2025-01-20 | 2026-07-31 |
| API input price / 1M tokens | $0.70 | $0.043 |
| API output price / 1M tokens | $2.50 | $0.30 |
| Est. cost per 1M input + 1M output tokens | $3.20 | $0.34 |
| Cached input / 1M tokens | — | $0.035 |
| AA Intelligence Index | 11.4 | — |
| AA Coding Index | 24.6 | 69.1 |
| AA Agentic Index | 1.1 | 41 |
| Max output tokens | 16,000 | 943,718 |
| API providers | — | 24 |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
DeepSeek-R1
$3.20
DeepSeek-V4-Flash-0731
$0.34
DeepSeek-V4-Flash-0731 is 9.3× cheaper at list price.
Download trend
Daily snapshots, last 90 days (13 Aug – 10 Nov)
8.5 M649 K
DeepSeek-R1
DeepSeek-V4-Flash-0731
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
DeepSeek-R1 · fp16 @ 160K ctx
2,811.5 GB / 24 GB
DeepSeek-V4-Flash-0731 · fp16 @ 1024K ctx
6,024.3 GB / 24 GB