FreeMake.ccFreeMake.cc
Recharge
DeepSeek-V4-FlashNew

DeepSeek V4 Flash API Guide — Codex & Agent Setup

  • DeepSeek's official V4 Flash API: stronger Agent planning than the V4 Pro preview — same 200B architecture, re-tuned with post-training.
  • Native Responses API for reliable structured output; full Codex integration for VS Code, Codex CLI, and ChatGPT desktop.
  • Not in the FreeMake.cc image workspace — this page covers the coding LLM. For visuals, use GPT Image 2, Gemini, or Imagen on FreeMake.cc.
Browse all models

Author: FreeMake.cc AI TeamLast updated:

What is DeepSeek-V4-Flash?Official Codex setup (DeepSeek API)Popular DeepSeek-V4-Flash use casesHow to try DeepSeek-V4-FlashDeepSeek-V4-Flash vs other models on FreeMake.ccDeepSeek-V4-Flash FAQ
DeepSeek-V4-Flash — DeepSeek V4 Flash API Guide — Codex & Agent Setup

What is DeepSeek-V4-Flash?

DeepSeek opened public beta for the official DeepSeek-V4-Flash API — a 200B-parameter model that keeps the same structure and size as the preview (DeepSeek-V4-Flash-0731) but delivers a large jump in capability through post-training alone. Agent skills now exceed the V4 Pro preview on internal benchmarks; Responses API support removes fragile JSON parsing; Codex support lets developers wire it into OpenAI's coding toolchain. V4-Pro API and web/app models are unchanged for now; a full V4-Pro release is expected soon. FreeMake.cc curates this guide for teams comparing AI stacks — image creation remains on our dedicated generators.

Agent upgrade

Stronger tool use, planning, and multi-step workflows — tuned for real dev and automation tasks.

Codex-ready

Works with OpenAI Codex in VS Code, Codex CLI, and ChatGPT desktop via official setup scripts.

Responses API

Native structured output — stable schemas for tools, databases, and RPA without JSON lottery.

Post-training gains

Same 200B footprint as preview; benchmark lifts on DSBench-FullStack and DSBench-Hard.

Browse all models

Official Codex setup (DeepSeek API)

Connect Codex to DeepSeek-V4-Flash using the setup guide on DeepSeek's API documentation site. Pricing and API keys are listed there.

macOS / Linux

Download and run the official Codex setup script for your platform from the DeepSeek API docs (Codex integration section).

Windows (PowerShell)

Use the Windows setup instructions in the DeepSeek API docs — run the official installer from their documentation, not third-party mirrors.

Responses API tip

Define your output schema in the Responses API request — V4 Flash returns 100% schema-conformant JSON for tool calls, DB writes, and agent handoffs.

Popular DeepSeek-V4-Flash use cases

Where teams deploy the official API today.

  • Agent & automation

    Multi-step agents that call APIs, query databases, and drive RPA with structured Responses output.

  • Daily coding

    Generation, review, and refactor via Codex — cost-effective for high-volume IDE assistance.

  • Long-context workloads

    200B Flash tuned for concurrency-friendly text and code — strong price/performance for production traffic.

  • When you need images

    Use FreeMake.cc models (GPT Image 2, Gemini, Imagen, Seedream) — V4 Flash does not generate pictures.

How to try DeepSeek-V4-Flash

Official API path — separate from FreeMake.cc image generation.

  1. Read this guide

    Confirm you need a coding/agent LLM (V4 Flash) versus image output (FreeMake.cc generators).

  2. Get API access

    Sign up at DeepSeek, review pricing at api-docs.deepseek.com/zh-cn/quick_start/pricing.

  3. Connect Codex (optional)

    Follow the Codex integration steps in DeepSeek's official API documentation for your operating system.

  4. Build with Responses API

    Use structured responses for agents; pair with your own tools and databases.

DeepSeek-V4-Flash vs other models on FreeMake.cc

Pick the right engine for code versus pixels.

ModelBest for
DeepSeek-V4-Flash (this page)
200B coding/agent LLM with Codex + Responses API — not on FreeMake.cc.
Claude Fable 5
Anthropic vision & reasoning — screenshot analysis and long coding agents; also not an image generator.
GPT Image 2
OpenAI flagship for text-to-image, posters, and product shots on FreeMake.cc.
Seedance2.5
ByteDance video model guide — 30s narrative and multimodal refs; separate from coding LLMs.
Models hubSee pricing & credits

DeepSeek-V4-Flash FAQ

Official API and FreeMake.cc scope.

  1. What changed in the official V4 Flash release?

    Same architecture and size as the preview; post-training boosts Agent, coding, and benchmark scores (including DSBench-FullStack and DSBench-Hard).

  2. Does it support Codex?

    Yes — DeepSeek-V4-Flash is supported now. V4-Pro Codex integration is expected around early August 2026.

  3. What is the Responses API?

    A structured output mode so the model returns developer-defined JSON reliably — critical for agents and tool use.

  4. Is V4-Pro updated too?

    Not yet — today's rollout targets V4-Flash API only. V4-Pro API and app/web models stay on the previous build until the full Pro launch.

  5. Can DeepSeek-V4-Flash generate images?

    No — it is a text/code LLM. Create images on FreeMake.cc with GPT Image 2, Gemini, Imagen, Qwen, Seedream, and others.

  6. Can I use it on FreeMake.cc?

    Not in the image workspace — FreeMake.cc focuses on AI image (and related creative) generators. Use DeepSeek's API for V4 Flash coding workloads.

  7. What is DeepSeek Harness?

    DeepSeek announced Harness is coming soon — watch official channels for agent orchestration details.

  8. Official docs?

    API documentation and pricing: https://api-docs.deepseek.com/zh-cn/quick_start/pricing

Related AI models

Compare capabilities and pick the best engine for your next brief.

Create for free on FreeMake.cc

1K after sign-in — your first image in under a minute.

Start generatingMore modelsFree image tools
DeepSeek V4 Flash API Guide — Codex Setup & Pricing