DeepSeek V4 Pro
DeepSeek · Text Generation
POST /v1/chat/completionsFlagship MoE LLM with 1.6T total / 49B active parameters and native 1M context for advanced math, logical inference, and specialized coding.
At a glance
| Field | Value |
|---|---|
| Model id | deepseek-v4-pro |
| Model release date | 2026-04-24 |
| Input modalities | Text |
| Output modalities | Text |
| Context window | 1M |
| Weight precision | - |
| Max output tokens | 393,216 |
| Region | Germany |
| Features | reasoning, function_calling |
| Native inference | No |
| New | No |
| Structured output | JSON Schema |
| Supported endpoints | POST /v1/chat/completions, POST /v1/responses, POST /v1/messages, POST /v1beta/models/deepseek-v4-pro:generateContent |
| Alternate model ids | deepseek/deepseek-v4-pro |
Pricing
| Charge | Spec | Rate |
|---|---|---|
| Input | per 1M prompt tokens | |
| Output | per 1M generated tokens | |
| Web Search (Linkup) | per call when invoked | $0.013 |
Example request
curl https://api.empiriolabs.ai/v1/chat/completions \-H 'Authorization: Bearer $EMPIRIOLABS_API_KEY' \-H 'Content-Type: application/json' \-d '{"model": "deepseek-v4-pro", "messages": [{"role":"user","content":"Hello"}]}'
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
temperature | number | no | 0.7 | Sampling temperature. 0 = deterministic, 2 = maximum randomness. · Range: 0 – 2 |
top_p | number | no | 0.9 | Nucleus sampling probability mass. Lower = more focused. · Range: 0 – 1 |
max_tokens | number | no | - | Maximum output tokens. When omitted, the model’s own default applies. · Range: 1 – 393216 |
stop | string | no | - | Up to 4 strings where the model will stop generating further tokens. |
enable_thinking | boolean | no | true | Enable step-by-step reasoning before answering. |
thinking_budget | number | no | 32768 | Maximum tokens reserved for reasoning when thinking is enabled. · Range: 1 – 393216 |
reasoning_effort | enum | no | "medium" | Reasoning effort level. none disables thinking. low, medium, high, and max set bounded thinking budgets sized to the selected model. · Allowed: none, low, medium, high, max |
response_format | enum | no | - | Constrain the output to JSON. Use JSON mode for any valid JSON object, or JSON schema to force output that matches a schema you provide. |
web_search_linkup | boolean | no | false | Optional web search powered by Linkup. When enabled, recent web sources are retrieved using your latest user message as the query and provided to the model as additional context. Adds $0.013 per call when invoked on top of the model’s normal token cost. Disabled by default. |
disable_formatting | boolean | no | false | Return the answer without the Sources list that web search adds. |
Variants
:variant1
| Field | Value |
|---|---|
| Model id | deepseek-v4-pro:variant1 |
| Model release date | 2026-04-24 |
| Region | Singapore |
| Context window | 1M |
| Weight precision | - |
| Max output tokens | 393,216 |
| Features | reasoning, web_search, function_calling |
| Native inference | No |
| Structured output | JSON Schema |
| Supported endpoints | POST /v1/chat/completions, POST /v1/responses, POST /v1/messages, POST /v1beta/models/deepseek-v4-pro:variant1:generateContent |
Pricing
| Charge | Spec | Rate |
|---|---|---|
| Input | per 1M prompt tokens | $2.40 |
| Output | per 1M generated tokens | $4.80 |
| Web search | per request when enabled | $0.02 |
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
temperature | number | no | 0.7 | Sampling temperature. 0 = deterministic, 2 = maximum randomness. · Range: 0 – 2 |
top_p | number | no | 0.9 | Nucleus sampling probability mass. Lower = more focused. · Range: 0 – 1 |
max_tokens | number | no | - | Maximum output tokens. When omitted, the model’s own default applies. · Range: 1 – 393216 |
stop | string | no | - | Up to 4 strings where the model will stop generating further tokens. |
enable_thinking | boolean | no | true | Enable step-by-step reasoning before answering. |
thinking_budget | number | no | 32768 | Maximum tokens reserved for reasoning when thinking is enabled. · Range: 1 – 393216 |
reasoning_effort | enum | no | "medium" | Reasoning effort level. none disables thinking. low, medium, high, and max set bounded thinking budgets sized to the selected model. · Allowed: none, low, medium, high, max |
tool_web_search | boolean | no | false | Enable live web search. Adds $0.02 to the request cost when enabled. |
response_format | enum | no | - | Constrain the output to JSON. Use JSON mode for any valid JSON object, or JSON schema to force output that matches a schema you provide. |
:variant2
| Field | Value |
|---|---|
| Model id | deepseek-v4-pro:variant2 |
| Model release date | 2026-04-24 |
| Region | China |
| Context window | 1M |
| Weight precision | - |
| Max output tokens | 393,216 |
| Features | reasoning, function_calling, web_search, cache |
| Native inference | No |
| Structured output | JSON Schema |
| Supported endpoints | POST /v1/chat/completions, POST /v1/responses, POST /v1/messages, POST /v1beta/models/deepseek-v4-pro:variant2:generateContent |
Pricing
| Charge | Spec | Rate |
|---|---|---|
| Input | per 1M prompt tokens | |
| Output | per 1M generated tokens | |
| Implicit cache read | per 1M cached input tokens | $0.138 |
| Web search | per request when enabled | $0.01 |
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
temperature | number | no | 0.7 | Sampling temperature. 0 = deterministic, 2 = maximum randomness. · Range: 0 – 2 |
top_p | number | no | 0.9 | Nucleus sampling probability mass. Lower = more focused. · Range: 0 – 1 |
max_tokens | number | no | - | Maximum output tokens. When omitted, the model’s own default applies. · Range: 1 – 393216 |
stop | string | no | - | Up to 4 strings where the model will stop generating further tokens. |
enable_thinking | boolean | no | true | Enable step-by-step reasoning before answering. With response_format, the model answers without reasoning unless the request sets enable_thinking. |
thinking_budget | number | no | 32768 | Maximum tokens reserved for reasoning when thinking is enabled. · Range: 1 – 393216 |
reasoning_effort | enum | no | "medium" | Reasoning effort level. none disables thinking. low, medium, high, and max set bounded thinking budgets sized to the selected model. · Allowed: none, low, medium, high, max |
tool_web_search | boolean | no | false | Enable live web search. Adds $0.01 to the request cost when enabled. |
response_format | enum | no | - | Constrain the output to JSON. Use JSON mode for any valid JSON object, or JSON schema to force output that matches a schema you provide. |
:variant3
| Field | Value |
|---|---|
| Model id | deepseek-v4-pro:variant3 |
| Model release date | 2026-04-24 |
| Region | United States |
| Context window | 1M |
| Weight precision | - |
| Max output tokens | 393,216 |
| Features | reasoning, function_calling, structured_output |
| Native inference | No |
| Structured output | JSON Schema |
| Supported endpoints | POST /v1/chat/completions, POST /v1/responses, POST /v1/messages, POST /v1beta/models/deepseek-v4-pro:variant3:generateContent |
Pricing
| Charge | Spec | Rate |
|---|---|---|
| Input | per 1M prompt tokens | $2.40 |
| Output | per 1M generated tokens | $4.80 |
| Web Search (Linkup) | per call when invoked | $0.013 |
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
temperature | number | no | 0.7 | Sampling temperature. 0 = deterministic, 2 = maximum randomness. · Range: 0 – 2 |
top_p | number | no | 0.9 | Nucleus sampling probability mass. Lower = more focused. · Range: 0 – 1 |
max_tokens | number | no | - | Maximum output tokens. When omitted, the model’s own default applies. · Range: 1 – 393216 |
stop | string | no | - | Up to 4 strings where the model will stop generating further tokens. |
enable_thinking | boolean | no | true | Enable step-by-step reasoning before answering. |
reasoning_effort | enum | no | "medium" | Reasoning effort level. none disables thinking. low, medium, high, and max set bounded thinking budgets sized to the selected model. · Allowed: none, low, medium, high, max |
thinking_budget | number | no | 32768 | Maximum tokens reserved for reasoning when thinking is enabled. · Range: 1 – 393216 |
response_format | enum | no | - | Constrain the output to JSON. Use JSON mode for any valid JSON object, or JSON schema to force output that matches a schema you provide. |
web_search_linkup | boolean | no | false | Optional web search powered by Linkup. When enabled, recent web sources are retrieved using your latest user message as the query and provided to the model as additional context. Adds $0.013 per call when invoked on top of the model’s normal token cost. Disabled by default. |
disable_formatting | boolean | no | false | Return the answer without the Sources list that web search adds. |
Machine-readable schema: GET https://api.empiriolabs.ai/v1/models/deepseek-v4-pro.