DeepSeek V4 Chat — Sovereign Conversational Core
Model: sovereign/deepseek-v4-sovereign (304B MoE, sovereign-tuned, MIT lineage — see
models/deepseek-v4-sovereign/)
Quick start
# Local echo mode (no key needed)
python3 -c "
from chat.core import ChatSession, DeepSeekV4Client
s = ChatSession(); s.add('user', 'hello')
print(DeepSeekV4Client().complete(s)['content'][:80])
"
# API mode — set the key, then run the server
export DEEPSEEK_API_KEY=hf_or_ds_... # DeepSeek-compatible key
export DEEPSEEK_API_BASE=https://api.deepseek.com/v1
export DEEPSEEK_MODEL=sovereign/deepseek-v4-sovereign
uvicorn chat.api.app:app --host 0.0.0.0 --port 8003
# → POST /api/v1/chat/sessions · /send · GET /models · /status
The router is also wired into src/sovereign/main.py (guarded) — the full
stack serves /api/v1/chat/*. Web UI: site/chat.html.
Env config
| Env | Default | Purpose |
|---|---|---|
DEEPSEEK_API_BASE |
https://api.deepseek.com/v1 |
OpenAI-compatible base URL |
DEEPSEEK_API_KEY |
(unset) | API key — unset ⇒ local echo mode |
DEEPSEEK_MODEL |
sovereign/deepseek-v4-sovereign |
Model id |
API
| Method | Path | Purpose |
|---|---|---|
| POST | /api/v1/chat/sessions |
Create a session |
| GET | /api/v1/chat/sessions/{id} |
Session + history |
| POST | /api/v1/chat/send |
Send message → reply ({message, session_id, temperature?, max_tokens?}) |
| GET | /api/v1/chat/models |
Model registry |
| GET | /api/v1/chat/status |
Mode / model / session count |
Tests
.venv/bin/pytest tests/test_chat.py -q # 7 tests
Honesty notes
- Local echo mode is deterministic and offline — a smoke test, not a model.
- The sovereign model card (304B MoE, GPTQ 4-bit) documents the architecture; serving it at full scale requires the DeepSeek API or a compatible runtime.