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 | $1.65 (was $1.74) |
| Output | per 1M generated tokens | $3.30 (was $3.48) |
| 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 | 4096 | Maximum output tokens. · 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 the reasoning process. Up to 393216. · 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. Sent as an OpenAI-style reasoning_effort field, translated into enable_thinking and thinking_budget for the model service. · 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 | When enabled, the gateway will not append the “Sources” footer to assistant responses that used Linkup web search. Useful when the model output is piped to another system that expects no decoration. |
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 | 4096 | Maximum output tokens. · 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 the reasoning process. Up to 393216. · 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. Sent as an OpenAI-style reasoning_effort field, translated into enable_thinking and thinking_budget for the model service. · Allowed: none, low, medium, high, max |
tool_web_search | boolean | no | false | Enable live web search. Adds a $0.02 surcharge 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 | 384,000 |
| 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 | $1.65 (was $1.74) |
| Output | per 1M generated tokens | $3.301 (was $3.48) |
| 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 | 4096 | Maximum output tokens. · 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 the reasoning process. Up to 393216. · 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. Sent as an OpenAI-style reasoning_effort field, translated into enable_thinking and thinking_budget for the model service. · 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. |
Machine-readable schema: GET https://api.empiriolabs.ai/v1/models/deepseek-v4-pro.