DeepSeek: DeepSeek V4 Pro 0423

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DeepSeek V4 Pro is DeepSeek's large-scale mixture-of-experts model, released 2026-04, with 1.6T total and 49B active parameters. Built for advanced reasoning, coding, and long-horizon agent workflows, it uses a hybrid attention system for efficient long-context processing. It targets complex tasks like full-codebase analysis and multi-step automation.

MirAPI doesn’t offer this model. The prices shown are the official list prices.

Modalities
inTextoutText
Price / 1M
$0.21 / $0.42
Context
1.049M
Released
Apr 24, 2026

Capabilities

ReasoningTool useLong contextPrompt cachingStructured output

Parameters

Request parameters this model accepts through the API.

frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_completion_tokensmax_tokensmin_ppresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_p

Benchmarks

bar = score (0–100) · ▏ median

Scores come from vendor reports and public leaderboards, not private evals.

Intelligence Index
General ability
30.4
#41
Coding Index
Code
59.4
#33
Agentic Index
Agentic
26.3
#28
GPQA Diamond
Science QA
86.6
#44
τ-bench (airline)
Agentic tool use
77.0
#14

Showcase

Every chat model gets the same three fixed prompts. Outputs are archived verbatim, so you can copy a prompt and reproduce the result.

Task prompt · identical for all models
Build a single-file HTML page using three.js from a CDN: a low-poly planet with a tilted ring of ~200 orbiting particles, a soft key light plus rim light, slow auto-rotation, and drag-to-orbit controls. No build tools — one file only.
Archived output
Archive not published yet

Every model will run this exact prompt, and its output will appear here verbatim with token counts and the cost per run.

Quick start

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.mirapi.ai/v1",   # changed
    api_key=os.environ["MIRAPI_API_KEY"],   # changed
)

resp = client.chat.completions.create(
    model="",
    messages=[{"role": "user", "content": "Hello"}],
)
Wire DeepSeek V4 Pro 0423 into your product

1M free tokens to start, no card required. It’s OpenAI-compatible, so you only change the base URL.

Start free