As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/m/deepseek-v4-pro/

# DeepSeek-V4-Pro

DeepSeek, DeepSeek V4 family. Status: current. Type: reasoning model. Released: 2026-04-24. Training cutoff: not published.

## How to call it

| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| DeepSeek API | `deepseek-v4-pro` | https://api.deepseek.com | https://api-docs.deepseek.com/quick_start/pricing |
| DeepSeek API (Anthropic format) | `deepseek-v4-pro` | https://api.deepseek.com/anthropic | https://api-docs.deepseek.com/quick_start/pricing |
| Alibaba Cloud Model Studio | `deepseek-v4-pro-0813` |  | https://www.alibabacloud.com/help/en/model-studio/models |
| OpenRouter | `deepseek/deepseek-v4-pro-0813` |  | https://openrouter.ai/deepseek/deepseek-v4-pro-0813 |
| OpenRouter (preview 0423) | `deepseek/deepseek-v4-pro` |  | https://openrouter.ai/deepseek/deepseek-v4-pro |
| Hugging Face |  |  | https://huggingface.co/deepseek-ai/DeepSeek-V4-Pro-0813 |
| Web app |  |  | https://chat.deepseek.com |

## Pricing

- Input: $1.32 per 1M tokens
- Output: $3.96 per 1M tokens
- Cache read: $0.044 per 1M tokens
- Unit as published: per 1M tokens (USD), peak-hour list price; off-peak is half (input 0.66, output 1.98, cache hit 0.022). Peak = 01:00-04:00 and 06:00-10:00 UTC Mon-Fri
- Source: https://api-docs.deepseek.com/quick_start/pricing
- Last checked: 2026-09-29

## Specs

- Input: text
- Output: text
- Context window: 1,000,000 tokens
- Max output: 384,000 tokens
- Open weights: yes
- Licence: mit

## What it has not seen

- No published training cutoff. Counted from its release (2026-04-24): at least 1,868 AI events since (427 major, 83 historic), as of 2026-11-13.
- Everything since March 2026: https://postcutoff.com/since/2026-03/

## What stands out

- Open-weight 1.6T MoE with 1M context: 1.6T total / 49B active parameters, MIT license, 1M-token context (paper: 'Towards Highly Efficient Million-Token Context Intelligence'). Source: https://huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash
- Agentic GA upgrade (0813) (found after launch): GA release greatly strengthened agent performance in production (e.g. Terminal Bench 2.1 87.9, Toolathlon-Verified 74.1 per DeepSeek). Source: https://api-docs.deepseek.com/updates
- Reasoning effort low/high/max (found after launch): Thinking mode supports three effort levels; non-thinking mode also available. Source: https://api-docs.deepseek.com/updates
- Native OpenAI Responses API + Codex (found after launch): DeepSeek API natively speaks the Responses API format and is adapted for Codex; Anthropic Messages format also supported. Source: https://api-docs.deepseek.com/updates
- DSpark speculative decoding module (found after launch): 0813 weights ship with an attached DSpark speculative-decoding module for faster inference. Source: https://huggingface.co/deepseek-ai/DeepSeek-V4-Pro-0813

## Notes

Preview 2026-04-24, GA snapshot DeepSeek-V4-Pro-0813 on 2026-08-13 (same id deepseek-v4-pro). Text-only (no vision). DeepSeek said service continues past 2026-09-14 until further notice. Knowledge cutoff not published.

DeepSeek's strongest model: long-horizon coding agents, reasoning, 1M-context tasks. Open weights (MIT).

```bash
curl https://api.deepseek.com/chat/completions \
 -H "Authorization: Bearer $DEEPSEEK_API_KEY" -H "Content-Type: application/json" \
 -d '{"model":"deepseek-v4-pro","reasoning_effort":"high","messages":[{"role":"user","content":"Hello"}]}'
```

Sources: https://api-docs.deepseek.com/quick_start/pricing · https://api-docs.deepseek.com/updates · https://huggingface.co/deepseek-ai/DeepSeek-V4-Pro-0813

Model page: https://postcutoff.com/m/deepseek-v4-pro/