Claude Sonnet 4

Claude Sonnet 4

Anthropic
Solar Pro 2

Solar Pro 2

Upstage AI
+
+

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About

Claude Sonnet 4, the latest evolution of Anthropic’s language models, offers a significant upgrade in coding, reasoning, and performance. Designed for diverse use cases, Sonnet 4 builds upon the success of its predecessor, Claude Sonnet 3.7, delivering more precise responses and better task execution. With a state-of-the-art 72.7% performance on the SWE-bench, it stands out in agentic scenarios, offering enhanced steerability and clear reasoning capabilities. Whether handling software development, multi-feature app creation, or complex problem-solving, Claude Sonnet 4 ensures higher code quality, reduced errors, and a smoother development process.

About

Solar Pro 2 is Upstage’s latest frontier‑scale large language model, designed to power complex tasks and agent‑like workflows across domains such as finance, healthcare, and legal. Packaged in a compact 31 billion‑parameter architecture, it delivers top‑tier multilingual performance, especially in Korean, where it outperforms much larger models on benchmarks like Ko‑MMLU, Hae‑Rae, and Ko‑IFEval, while also excelling in English and Japanese. Beyond superior language understanding and generation, Solar Pro 2 offers next‑level intelligence through an advanced Reasoning Mode that significantly boosts multi‑step task accuracy on challenges ranging from general reasoning (MMLU, MMLU‑Pro, HumanEval) to complex mathematics (Math500, AIME) and software engineering (SWE‑Bench Agentless), achieving problem‑solving efficiency comparable to or exceeding that of models twice its size. Enhanced tool‑use capabilities enable the model to interact seamlessly with external APIs and data sources.

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

Developers, software engineers, and businesses looking for a high-performance AI model to enhance coding efficiency, improve problem-solving, and optimize development processes

Audience

Enterprises and development teams requiring a tool to drive complex reasoning, document processing and tool‑enabled workflows

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

Screenshots and Videos

Pricing

$3 / 1 million tokens (input)
Free Version
Free Trial

Pricing

$0.1 per 1M tokens
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

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:

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Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Anthropic
Founded: 2021
United States
claude.ai

Company Information

Upstage AI
Founded: 2020
United States
www.upstage.ai/blog/en/solar-pro-2-launch

Alternatives

Alternatives

Solar Mini

Solar Mini

Upstage AI
Claude Opus 4.1

Claude Opus 4.1

Anthropic
Claude Opus 3

Claude Opus 3

Anthropic
Claude Opus 4

Claude Opus 4

Anthropic
Mathstral

Mathstral

Mistral AI
Upstage AI

Upstage AI

Upstage.ai

Categories

Categories

Integrations

BLACKBOX AI
Bind AI
Brokk
C
CSS
CSS
ClickUp Brain
Cody
Doraverse
Elixir
GitAuto
GitHub Copilot
Julia
OpenCode
PyCharm
React
RustRover
Snowflake Cortex AI
StackAI
Thesys Agent Builder

Integrations

BLACKBOX AI
Bind AI
Brokk
C
CSS
CSS
ClickUp Brain
Cody
Doraverse
Elixir
GitAuto
GitHub Copilot
Julia
OpenCode
PyCharm
React
RustRover
Snowflake Cortex AI
StackAI
Thesys Agent Builder
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Claim Claude Sonnet 4 and update features and information
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