🤖Tencent Unveils Hy4 Preview, 770B Parameters LLM
Hy4 Preview: 770B Parameters, 1M Token Context
TL;DR
Tencent's Hy4 Preview, a 770B parameter LLM with 1M token context, is now open-source and available via WorkBuddy and CodeBuddy. Free access for two weeks, with API pricing starting at $0.834 per million input tokens.
Tencent has released Hy4 Preview, a large language model with 770 billion parameters and a context window of over 1 million tokens. This model, available open-source and through Tencent products like WorkBuddy and CodeBuddy, is designed to enhance productivity in coding, office work, and scientific research. For developers, this means access to a powerful tool that can handle complex long-context tasks and improve front-end development. With API pricing starting at $0.834 per million input tokens, it's a significant step forward in open-source LLMs. Hy4 Preview scores 2.99 out of 4.00 in internal evaluations, demonstrating its capabilities in understanding, planning, debugging, and validation.

Key Points
Hy4 Preview features 770B total parameters and 49B active parameters, with a context window exceeding 1M tokens.
Hy4 Preview scores 2.99 out of 4.00 in internal evaluations involving 163 experts and 203 engineering tasks.
Free access to Hy4 Preview on WorkBuddy and CodeBuddy is available for two weeks, with extended access to Hy3 until September 30.
API pricing starts at $0.834 per million input tokens, $2.501 per million output tokens, and $0.042 for cache hits.
Hy4 Preview supports productivity tasks in coding, office work, and scientific research, enhancing front-end development.
Why It Matters
If you're working on complex coding tasks or need a powerful LLM for office productivity, Hy4 Preview's 770B parameters and 1M token context can significantly enhance your workflow. For developers, this means better understanding, planning, debugging, and validation capabilities, especially in long-context tasks. However, the API pricing might be a barrier for smaller projects, with costs starting at $0.834 per million input tokens.
Frequently Asked Questions
Why does this matter?
If you're working on complex coding tasks or need a powerful LLM for office productivity, Hy4 Preview's 770B parameters and 1M token context can significantly enhance your workflow. For developers, this means better understanding, planning, debugging, and validation capabilities, especially in long-context tasks. However, the API pricing might be a barrier for smaller projects, with costs starting at $0.834 per million input tokens.
What happened?
Tencent's Hy4 Preview, a 770B parameter LLM with 1M token context, is now open-source and available via WorkBuddy and CodeBuddy. Free access for two weeks, with API pricing starting at $0.834 per million input tokens.
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