DeepSeek-V3.1 vs o1
API pricing, benchmark indices and specs — updated 19 October 2026.
deepseek-ai · A · Open weights
Params
684.5 B
Context
163,840
30d
316 K
mit · commercial OK
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | DeepSeek-V3.1 | o1 |
|---|---|---|
| Deployment | Open weights · also via API | API-only (closed weights) |
| Parameters | 684.5 B | n/a — API-only |
| Architecture | DeepseekV3ForCausalLM | n/a — API-only |
| Context length | 163,840 | 200,000 |
| Licence | mit | Proprietary |
| Commercial use | Allowed | Per API terms |
| Languages | — | n/a — API-only |
| Downloads 30d | 316,373 | n/a — API-only |
| Downloads all time | 3.4 M | n/a — API-only |
| Quantizations on the Hub | SAFETENSORS | n/a — API-only |
| Gated | No | n/a — API-only |
| First seen on the Hub | 2025-08-21 | n/a — API-only |
| API input price / 1M tokens | $0.25 | $15.00 |
| API output price / 1M tokens | $0.95 | $60.00 |
| Est. cost per 1M input + 1M output tokens | $1.20 | $75.00 |
| Cached input / 1M tokens | $0.13 | $7.50 |
| AA Intelligence Index | 13.7 | 15.2 |
| AA Coding Index | — | 39.7 |
| AA Agentic Index | — | — |
| Max output tokens | 32,768 | 100,000 |
| API providers | 5 | 1 |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
DeepSeek-V3.1
$1.20
o1
$75.00
DeepSeek-V3.1 is 62.5× cheaper at list price.
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
DeepSeek-V3.1 · fp16 @ 160K ctx
2,811.5 GB / 24 GB