Solar Pro 4

Solar Pro 4

Upstage
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About

Kokoro TTS is an efficient text-to-speech tool with multilingual and customizable voice support. Its 182M parameter architecture delivers high-quality audio, supporting languages like American English, British English, French, Korean, Japanese, and Mandarin. It features lifelike voice options, automatic content segmentation, and OpenAI compatibility, facilitating content creation and application integration. With NVIDIA GPU acceleration, it ensures real-time audio generation, making it suitable for various projects.

About

Solar Pro 4 is an agentic AI model built to carry real work to the finish: reading documents, running tools, producing deliverables, and stopping when the evidence runs out. It targets longer, more complex workloads that move across multiple documents, execute tasks in a terminal, and chain tool calls over many steps. The model supports a 512K context window with up to 128K output tokens, allowing agents to load contracts, reports, and data files into a single session without splitting them. It handles English, Korean, and Japanese for both input and output, while adjustable reasoning effort lets users choose deeper analysis or faster, real-time interaction. Solar Pro 4 is designed to stay accurate through long documents, multi-turn tool use, and terminal tasks, and to preserve values and conclusions across sequential deliverables such as Excel workbooks, reports, and slide decks.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Companies or users that need a cutting-edge AI text to speech solution

Audience

Developers and organizations seeking to run complex AI agent workflows across documents, tools, terminals, and multi-step business tasks with verifiable outputs

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$0
Free Version
Free Trial

Pricing

$0.03 per 1M tokens
Free Version
Free Trial

Reviews/Ratings

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

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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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Kokoro TTS
Founded: 2024
Singapore
kokorottsai.com

Company Information

Upstage
Founded: 2020
United States
www.upstage.ai/blog/en/solar-pro-4

Alternatives

Fish Audio

Fish Audio

Hanabi AI

Alternatives

Solar Pro 2

Solar Pro 2

Upstage AI
Solar Mini

Solar Mini

Upstage AI
GPT-Live-1

GPT-Live-1

OpenAI
Seed2.1 Turbo

Seed2.1 Turbo

ByteDance
Qwen3-TTS

Qwen3-TTS

Alibaba
Pokee-Isaac

Pokee-Isaac

Pokee AI

Categories

Categories

Integrations

Heard
Hermes Agent
OpenAI
OpenRouter
Oxlo.ai
Upstage AI
Vision Agents

Integrations

Heard
Hermes Agent
OpenAI
OpenRouter
Oxlo.ai
Upstage AI
Vision Agents
Claim Kokoro TTS and update features and information
Claim Kokoro TTS and update features and information
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