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ease
features
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support

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Description

Chat Stream offers users the opportunity to tap into two robust language models developed by DeepSeek, showcasing their impressive capabilities. The models, DeepSeek V3 and R1, contain a staggering 671 billion parameters, with 37 billion activated per token, and consistently achieve remarkable benchmark performances, such as MMLU at 87.1% and BBH at 87.5%. With an extensive context window length of 128K, these models excel in tasks like code generation, complex mathematical computations, and processing multiple languages. Technically, they leverage an advanced Mixture-of-Experts (MoE) architecture, utilize Multi-head Latent Attention (MLA), feature auxiliary-loss-free load balancing, and implement a multi-token prediction objective to enhance performance. Deployment is versatile, providing a web-based chat interface for immediate access, easy integration into websites through iframes, and dedicated mobile applications for both iOS and Android devices. Furthermore, the models are compatible with various hardware, including NVIDIA, AMD GPUs, and Huawei Ascend NPUs, allowing for both local inference and cloud-based deployment. Users can benefit from different access methods, including free chat without the need for registration, website embedding options, mobile app usage, and a premium subscription that offers an ad-free experience, ensuring flexibility and accessibility for all.

Description

GigaChat 3 Ultra redefines open-source scale by delivering a 702B-parameter frontier model purpose-built for Russian and multilingual understanding. Designed with a modern MoE architecture, it achieves the reasoning strength of giant dense models while using only a fraction of active parameters per generation step. Its massive 14T-token training corpus includes natural human text, curated multilingual sources, extensive STEM materials, and billions of high-quality synthetic examples crafted to boost logic, math, and programming skills. This model is not a derivative or retrained foreign LLM—it is a ground-up build engineered to capture cultural nuance, linguistic accuracy, and reliable long-context performance. GigaChat 3 Ultra integrates seamlessly with open-source tooling like vLLM, sglang, DeepSeek-class architectures, and HuggingFace-based training stacks. It supports advanced capabilities including a code interpreter, improved chat template, memory system, contextual search reformulation, and 128K context windows. Benchmarking shows clear improvements over previous GigaChat generations and competitive results against global leaders in coding, reasoning, and cross-domain tasks. Overall, GigaChat 3 Ultra empowers teams to explore frontier-scale AI without sacrificing transparency, customizability, or ecosystem compatibility.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

No images available

Screenshots View All

No images available

Integrations

DeepSeek R1 Yes 
DeepSeek-V3 Yes 
GigaChat No 

Integrations

DeepSeek R1 No 
DeepSeek-V3 No 
GigaChat Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version Yes 

Pricing Details

Free
Open source
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support No 

Types of Training

Training Docs No 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Chat Stream

Founded

2023

Country

Hong Kong

Website

www.chatstream.org

Vendor Details

Company Name

Sberbank

Founded

1841

Country

Russia

Website

giga.chat

Product Features

Product Features

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