Day 1 Support for DeepSeek V4 Flash

The pace of open-weight model releases is staggering. Today, DeepSeek announced the release of their newest highly optimized model: DeepSeek-V4-Flash-0731.

If you haven't been paying attention to DeepSeek lately, you should be. They have been consistently outputting models that punch way above their weight class when it comes to speed-to-intelligence ratios, and their pricing is incredibly competitive.

Why V4 Flash Matters

For many applications, using a massive frontier model like GPT-5.6 Sol for every single API call is like using a sledgehammer to crack a nut. It's expensive and often slower than necessary.

If you are running background tasks like document classification, sentiment analysis, basic summarization, or structured data extraction, you need speed and low cost above all else. This is exactly where V4 Flash shines.

It is designed for high-throughput, low-latency workloads, making it perfect for autonomous agents that need to make hundreds of rapid reasoning steps in the background.

Try it Instantly on RouteLM

The beauty of a unified gateway is that you don't have to spend your afternoon integrating a new API to test a new model.

We have added Day 1 support for deepseek-v4-flash-0731. It is live on RouteLM right now.

To use it, you don't need to change your SDK, create a new DeepSeek account, or read any new documentation. Assuming you are already using RouteLM as your base_url, you simply change the model string in your existing code:

response = client.chat.completions.create(
    model="deepseek-v4-flash-0731",
    messages=[
        {"role": "user", "content": "Extract the key entities from this text..."}
    ]
)

That's it.

If you are using our auto routing feature, we've already updated our internal engine to consider V4 Flash for simple, high-speed classification tasks to help optimize your costs automatically.

Grab your API key and test it out today!