ByteDance Seed

ByteDance Seed

ByteDance
Mercury Voice

Mercury Voice

Inception
+
+

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About

Seed Diffusion Preview is a large-scale, code-focused language model that uses discrete-state diffusion to generate code non-sequentially, achieving dramatically faster inference without sacrificing quality by decoupling generation from the token-by-token bottleneck of autoregressive models. It combines a two-stage curriculum, mask-based corruption followed by edit-based augmentation, to robustly train a standard dense Transformer, striking a balance between speed and accuracy and avoiding shortcuts like carry-over unmasking to preserve principled density estimation. The model delivers an inference speed of 2,146 tokens/sec on H20 GPUs, outperforming contemporary diffusion baselines while matching or exceeding their accuracy on standard code benchmarks, including editing tasks, thereby establishing a new speed-quality Pareto frontier and demonstrating discrete diffusion’s practical viability for real-world code generation.

About

Mercury is a family of diffusion large language models built to deliver frontier LLM quality at significantly higher speeds, running at 1,000+ tokens per second on commercial NVIDIA GPUs for instant, in-the-flow AI applications. The models are OpenAI-compatible and designed as drop-in replacements for traditional LLMs, making them easier to integrate into existing AI stacks. Mercury 2.5 is the family’s most intelligent reasoning dLLM, built for complex applications where both quality and speed matter. It supports a 260K context window, reasoning, tool use, and structured output, with use cases including rapid coding iteration, agents and subagents, customer support, and enterprise search. Mercury Voice is optimized for voice agents and delivers time-to-first-token under 170 ms while supporting reasoning, tool use, structured output, and a 128K context window. It is suited to applications such as customer support, patient care, education, and gaming.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers and research teams needing a code generation model tool that reduces latency compared to traditional autoregressive systems while maintaining competitive benchmark performance

Audience

Developers and AI teams seeking to build fast, high-performance applications, agents, voice systems, and reasoning workflows with diffusion-based language models

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$0.04 per 1M tokens
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

ByteDance
Founded: 2012
China
seed.bytedance.com/en/seed_diffusion

Company Information

Inception
United States
www.inceptionlabs.ai/models

Alternatives

Seed2.0 Pro

Seed2.0 Pro

ByteDance

Alternatives

Mercury Edit 2

Mercury Edit 2

Inception
Mercury 2.5

Mercury 2.5

Inception
Gemini Diffusion

Gemini Diffusion

Google DeepMind
Mercury 2

Mercury 2

Inception
Mercury Coder

Mercury Coder

Inception Labs
Mercury Coder

Mercury Coder

Inception Labs
Mercury 3

Mercury 3

Inception

Categories

AI Code Generators Supported
AI Models Supported
AI Video Models Supported

Categories

AI Models Supported

Integrations

AnyAPI Supported
C++ Supported
Citlyze Supported
Claude Haiku 4.5 Not Supported
Flyne AI Supported
Fuser Supported
GPT-5.6 Luna Not Supported
Gemini 3.5 Flash-Lite Not Supported
Go Supported
Java Supported
Magica Supported
OpenAI Not Supported
Python Supported
TESS AI Supported
WaveSpeedAI Supported
ZOOOP Supported
graphis Supported

Integrations

AnyAPI Not Supported
C++ Not Supported
Citlyze Not Supported
Claude Haiku 4.5 Supported
Flyne AI Not Supported
Fuser Not Supported
GPT-5.6 Luna Supported
Gemini 3.5 Flash-Lite Supported
Go Not Supported
Java Not Supported
Magica Not Supported
OpenAI Supported
Python Not Supported
TESS AI Not Supported
WaveSpeedAI Not Supported
ZOOOP Not Supported
graphis Not Supported
Claim ByteDance Seed and update features and information
Claim ByteDance Seed and update features and information
Claim Mercury Voice and update features and information
Claim Mercury Voice and update features and information