At GoSearch, we believe teams should always have access to the latest breakthroughs in AI, on day one. That’s why we’re excited to announce that Anthropic’s Claude Sonnet 4.5, released just hours ago, is already live in GoSearch as a flagship model option.
This powerful new model joins our growing suite of flagship and reasoning LLMs, giving every team the flexibility to choose the best AI for the job, whether you’re running a quick search, building a custom agent, or automating a complex workflow across your tech stack.
About Claude Sonnet 4.5
Anthropic is calling Claude Sonnet 4.5 the best coding model in the world. And for good reason:
- Advanced coding capabilities – Claude Sonnet 4.5 is trained to handle complex software engineering challenges, from writing optimized code to debugging large systems.
- Strongest model for building agents – If you’re creating AI-powered agents in GoSearch to automate tasks across apps, Claude 4.5 sets a new standard in reliability and execution.
- Superior computer use – Claude Sonnet 4.5 is designed to excel at interacting with tools, applications, and APIs, which makes it especially effective for enterprise automation.
- Big leaps in reasoning and math – Alongside coding, Claude 4.5 demonstrates significant improvements in logic-heavy and quantitative tasks, critical for engineering, data science, and finance use cases.
For technical teams who need an AI that can both understand natural language queries and act across systems, Claude Sonnet 4.5 is a major upgrade.
Claude Sonnet 4.5 for Agents
Where Claude Sonnet 4.5 will really shine in GoSearch is in agent building. With no code required, teams can design agents that:
- Execute recurring workflows.
- Act across apps like Jira, Confluence, Slack, GitHub, and more.
- Perform multi-step reasoning with reliability.
Because Claude 4.5 is better than ever at using computers, it can handle complex tool calls and longer chains of logic, making it ideal for enterprise-grade automation.
Available in GoSearch the Same Day
One of GoSearch’s core commitments is making sure teams never have to wait to experiment with the latest AI models. As soon as a model is released, we move quickly to integrate it into our platform.
That means on day one, your team can:
- Start running enterprise searches with Claude Sonnet 4.5.
- Power GoAI responses with improved reasoning and coding strength.
- Build custom agents backed by Anthropic’s most advanced model to date.
This immediate availability ensures your organization stays ahead of the curve, experimenting with and adopting new AI capabilities as they launch.
The GoSearch LLM Ecosystem
Claude Sonnet 4.5 is joining a robust set of options inside GoSearch. Every query, every conversation, and every agent can be configured with the exact model that fits the task.
Here’s the current lineup:
Flagship Models
Optimized for general-purpose performance across knowledge, reasoning, and creative tasks.
- GPT-5 (OpenAI)
- GPT-4.1 (OpenAI)
- Claude Sonnet 4.5 (Anthropic)
- Claude Sonnet 4 (Anthropic)
- Gemini 2.5 Flash (Google DeepMind)
Reasoning Models
Specialized for deep thinking, analysis, and step-by-step reasoning.
- GPT-5 Thinking (OpenAI)
- o4-mini (OpenAI)
- Claude Sonnet 4.5 Thinking (Anthropic)
- Claude Sonnet 4 Thinking (Anthropic)
- Gemini 2.5 Pro (Google DeepMind)
LLM Switching: Choose the Best Model for the Job
One of GoSearch’s most powerful features is per-prompt model selection. Instead of locking your organization into one default LLM, we give you the flexibility to pick the right tool for the task, every time.
- For enterprise search: Want fast, concise answers? Choose Gemini 2.5 Flash. Need deep reasoning over technical documentation? Try GPT-5 Thinking.
- For building agents: Create a Jira ticket, digest Confluence docs, or summarize meeting notes with Claude Sonnet 4.5, the strongest model for multi-step, tool-driven workflows.
- For everyday chat: Switch to GPT-4.1 or Claude 4 for balanced performance across knowledge, writing, and creativity.
This flexibility extends to custom agents, too. When you build a personal or team agent in GoSearch, you decide which model powers it. That means your finance agent can be driven by a reasoning-heavy LLM while your support ticketing agent runs on a faster flagship model, optimized for both accuracy and efficiency.
Flexible Models for Every Task
In fast-moving organizations, no single AI model can cover every need equally well. Developers want a model that codes. Analysts want one that reasons. Customer-facing teams need one that answers quickly and clearly.
GoSearch is the only enterprise search and AI agent platform that lets you:
- Switch models instantly without leaving the dashboard.
- Mix and match models across teams and workflows.
- Upgrade to new models immediately as they’re released.
This ensures your teams aren’t stuck waiting for the “right” AI tool. They can choose it themselves, every time.
Staying Ahead with GoSearch
The AI model landscape is moving faster than ever. What’s cutting-edge today will be outpaced tomorrow. But with GoSearch, your team doesn’t need to worry about falling behind.
We integrate every major LLM release on day one, whether it’s from OpenAI, Anthropic, or Google DeepMind, so your teams always have the latest technology at their fingertips.
And because model switching is built into the core of GoSearch, these comparisons are as simple as changing a dropdown.
Claude Sonnet 4.5 sets a new benchmark for coding, reasoning, and agent building. By making it available in GoSearch the very same day it launched, we’re continuing our mission to keep your teams at the forefront of AI adoption.
The strongest coding and reasoning model in the world is here, and it’s already in your GoSearch workspace.
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