BytePlus: DeepSeek V4 Pro
byteplus/deepseek-v4-pro-260425
Try DeepSeek V4 Pro for free in your browser, and add it to your app for free with Puter.js AI API.
Try it free Add to your app// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "byteplus/deepseek-v4-pro-260425"
}).then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms", {
model: "byteplus/deepseek-v4-pro-260425"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
Model Card
DeepSeek V4 Pro is a 1.6 trillion-parameter Mixture-of-Experts model from DeepSeek, with 49 billion parameters activated per token. Here it's made available through BytePlus's Model Ark hosting.
DeepSeek released it under the MIT license as an open-weight model. The company reports it leads open-source models on math, coding, and STEM reasoning benchmarks.
On LiveCodeBench it scores 93.5 in DeepSeek's reported testing, and on SWE-bench Verified it scores 80.6%, matching Gemini 3.1 Pro's reported score on that benchmark.
It supports a 1M-token context window and tool calling, which suits long-running coding agents, large codebase review, and other tasks where extended context and multi-step reasoning matter.
Context Window 1M
tokens
Max Output 384K
tokens
Input Cost $1.74
per million tokens
Output Cost $3.48
per million tokens
Input text
modalities
Tool Use Yes
Release Date Apr 25, 2026
Try DeepSeek V4 Pro for free
Try DeepSeek V4 Pro instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.
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ImageDola Seedream 5.0 Pro
Dola Seedream 5.0 Pro is ByteDance's Seedream 5.0 Pro image generation and editing model, offered here through BytePlus's ModelArk API under the "Dola" branding BytePlus uses across its hosted model lineup. It generates images as independently editable layers, separating subjects, text, and background so pieces can be repositioned or swapped after generation. It supports pixel-level editing through selection points, arrows, and annotation boxes, reads color codes and material specifications, and renders text across 14 or more languages including Arabic, Korean, Thai, French, Russian, and Japanese. On Artificial Analysis's independent Text-to-Image Elo leaderboard it scores 1,283, ranking 8th overall, ahead of Black Forest Labs' FLUX.2 Max (1,233) and just behind Google's Nano Banana Pro (1,299). It fits production teams that need layered, editable output and multilingual text rather than a single flattened image.
VideoDreamina Seedance 2.5
Dreamina Seedance 2.5 is ByteDance's newest Seedance video model, distributed under the Dreamina brand and hosted here through BytePlus. It follows Seedance 2.0, extending single-pass clips from 15 seconds to 30 seconds, with support for multi-round extension beyond that. Through this API it renders at 480p, 720p, or 1080p at 24fps, dropping the 4K tier that 2.0 offered. Reference input also grows. ByteDance says it can combine up to 50 assets in one generation call, including up to 30 images, 10 video clips, and 10 audio clips alongside a text prompt, plus native audio-video generation in a single pass and timestamp-level editing for adjusting specific segments of a clip. ByteDance also reports improved texture, lighting, and motion detail over 2.0. It suits the same production use cases as the 2.0 family, such as marketing clips and multi-shot sequences, now with longer single takes and more reference material to work from.
Frequently Asked Questions
You can access DeepSeek V4 Pro by BytePlus through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.
DeepSeek V4 Pro is free to try with a Puter account. Every account includes a free AI allowance, and you can chat with it in the playground on this page. You can upgrade your account anytime for a larger allowance.
DeepSeek V4 Pro is free to integrate using the Puter.js AI API. With the User-Pays Model, you can add AI to your app for $0, since users cover their own AI usage through their Puter account.
| Price per 1M tokens | |
|---|---|
| Input | $1.74 |
| Output | $3.48 |
DeepSeek V4 Pro was created by BytePlus and released on Apr 25, 2026.
DeepSeek V4 Pro supports a context window of 1M tokens. For reference, that is roughly equivalent to 2,048 pages of text.
DeepSeek V4 Pro can generate up to 384K tokens in a single response.
DeepSeek V4 Pro accepts the following input types: text. It produces: text.
Yes, DeepSeek V4 Pro supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.
Yes — the DeepSeek V4 Pro API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Add DeepSeek V4 Pro to your app for free
Developers can integrate DeepSeek V4 Pro for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.