DeepSeek — open-weight Chinese LLM family. Strong cost-to-quality ratio and good code generation.
Key strengths
- Open weights
- Cost-efficient
- Strong code
- Good Chinese + English
Use cases
- Budget deployments
- Self-hosting
- Code generation
- Research baselines
When Thinking mode is enabled, reasoning tokens generated by the model are counted as billable output. This can increase total usage beyond the visible answer tokens.
Alibaba's alibaba/deepseek-v4-pro is a frontier text generation model in the Qwen family. It excels at complex reasoning, agentic workflows, code generation, and long-form writing tasks, with native support for streaming, tool calling, JSON mode, and multi-turn conversations.
The model handles long-context inputs gracefully and is particularly effective for software engineering, multi-step research, and end-to-end project execution. Its tokenizer and pricing are optimized for high-throughput production workloads, with a competitive cost profile relative to other models in its tier.
alibaba/deepseek-v4-pro is fully OpenAI-compatible — drop in your existing OpenAI Python or Node SDK and switch `baseURL` to `https://api.tokenlx.ai`. TokenLX transparently routes your requests to the optimal provider endpoint while preserving streaming, function-calling, and structured-output semantics.
Performance
Compare different providers across TokenLX · All locations.
Effective Pricing
Actual cost per million tokens across providers over the past 7 days.
Recent activity
Total usage per day on TokenLX (last 30 days).
Sample code & API
TokenLX normalizes requests and responses across providers. Use any OpenAI SDK or our native SDK.
Disable Thinking when you do not need explicit reasoning, or set a lower budget_tokens value to cap the reasoning length. Only enable return_thoughts when you need to inspect the thinking process.
from openai import OpenAI
client = OpenAI(
base_url="https://api.tokenlx.ai/v1",
api_key="sk-tokenlx-...",
)
# Non-streaming
response = client.chat.completions.create(
model="deepseek-v4-pro",
messages=[
{"role": "system", "content": "You are a helpful assistant."},
{"role": "user", "content": "Hello!"},
],
# Optional: enable Thinking / reasoning.
extra_body={
"thinking": {
"enabled": True,
"budget_tokens": 2048,
"return_thoughts": True,
}
},
)
print(response.choices[0].message.content)
# Streaming
stream = client.chat.completions.create(
model="deepseek-v4-pro",
messages=[{"role": "user", "content": "Tell me a story"}],
stream=True,
extra_body={
"thinking": {
"enabled": True,
"budget_tokens": 2048,
"return_thoughts": True,
}
},
)
for chunk in stream:
print(chunk.choices[0].delta.content or "", end="", flush=True)Replace sk-aihubrouter-… with your key from the dashboard.