DeepSeek

DeepSeek V4 Flash 0423

Generally availableOpen weights1M contextReasoning

Summary

DeepSeek V4 Flash 0423 is an open-weight language model from DeepSeek, released on 23 Apr 2026. It accepts text and generates text, with a 1M-token context window and up to 384K output tokens per response.

Initial DeepSeek V4 Flash snapshot for economical reasoning, coding, and million-token agent workloads

Last verified 4 Oct 2026. Every figure on this page links to its source.

Specifications

DeveloperDeepSeek
Release date23 Apr 2026 [models.dev]
StatusGenerally available [models.dev]
WeightsOpen weights [models.dev]
Context window1M (1,000,000 tokens) [models.dev]
Max output384K tokens [models.dev]
Knowledge cutoffMay 2025 [models.dev]
InputText [models.dev]
OutputText [models.dev]
Reasoning modeYes [models.dev]
Tool callingYes [models.dev]
Structured outputYes [models.dev]

DeepSeek V4 Flash 0423 API pricing by provider

USD per million tokens. Sorted by input price.

We do not currently track a paid API listing for this model.

Frequently asked questions

What is the context window of DeepSeek V4 Flash 0423?

DeepSeek V4 Flash 0423 has a context window of 1,000,000 tokens (1M) and can generate up to 384,000 tokens in a single response, according to models.dev.

Is DeepSeek V4 Flash 0423 open source?

DeepSeek V4 Flash 0423 is an open-weight model. Check the license terms before commercial use.

When was DeepSeek V4 Flash 0423 released?

DeepSeek released DeepSeek V4 Flash 0423 on 23 Apr 2026, according to models.dev.

Change history

No changes detected since we started tracking this model. We re-check every source daily.

Sources