/v1/chat/completions

Compare 2 text generation models in the DeepSeek V4 family, then call the one that fits your latency, quality, and pricing needs.
DeepSeek V4 on EmpirioLabs brings together 2 text generation model APIs from DeepSeek, including DeepSeek V4 Flash, DeepSeek V4 Pro. Each model keeps its own dedicated page with live pricing, parameters, docs, and playground access.
Use the same EmpirioLabs API key and endpoint pattern across the family, then switch behavior by changing the model id in your request.
Compare the family at a glance, then open a model page for the complete live rate card and parameters.
/v1/chat/completions/v1/chat/completionsDeepSeek V4 Flash serves the OpenAI-compatible Chat Completions API. Point any OpenAI SDK at https://api.empiriolabs.ai/v1 with your EmpirioLabs API key and use the model id deepseek-v4-flash. For this family, swap the model value for any supported id: deepseek-v4-flash deepseek-v4-pro. Get an API key from the EmpirioLabs dashboard.
curl https://api.empiriolabs.ai/v1/chat/completions \
-H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "deepseek-v4-flash",
"messages": [
{"role": "user", "content": "Write a haiku about the ocean."}
]
}'See prompt tests, output notes, and comparison runs that mention this model family.
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ComparisonsKimi K3 vs GLM 5.2 vs DeepSeek V4 ProCompare Kimi K3, GLM 5.2, and DeepSeek V4 Pro on EmpirioLabs: three 1M token reasoning models, side by side on context,...DeepSeek V4 on EmpirioLabs is a family of 2 Text Generation model APIs from DeepSeek: DeepSeek V4 Flash, DeepSeek V4 Pro. You use one EmpirioLabs API key and choose the model id that fits the request.
Start with the model whose dedicated page matches your speed, quality, and pricing needs, then test it in the EmpirioLabs playground. The comparison cards above link to each model's live rate card and quickstart.
Yes. The family is designed around the same EmpirioLabs API pattern, so most integrations switch by changing the model value. Check the model page before shipping if you rely on a model-specific parameter.
Pricing is pay as you go. The cards on this page show a short live-catalog summary, and each model page shows the complete rate card that matches API billing.
Yes. Open any model page in this family and use its playground link to test prompts and parameters in the browser before integrating the API.
Check out our pricing or reach out if you want your own model deployed on our stack.