GPT-5 now live in Sendbird AI agent

At Sendbird, we build AI agents that are fast, capable, and built for real-world complexity. We’re excited to bring GPT‑5 to production inside the Sendbird AI agent platform, powering deeper reasoning, better context retention, and more reliable automation where it matters most.
 

Where GPT‑5 makes a difference

GPT‑5 isn’t a plug-and-play upgrade. At Sendbird, large language models sit within a carefully structured system: from Actionbooks and orchestration logic to observability and evaluation layers. We’ve integrated GPT‑5 into key areas of the Sendbird AI agent platform, not as a blanket replacement, but as a targeted upgrade where the model clearly improves real-world performance.

Based on extensive internal testing and benchmarks, GPT‑5 has been deployed in areas where it delivers measurable gains:

• Long-context reasoning for better omnichannel continuity: GPT‑5 maintains longer context across long, multi-turn conversations. Whether a customer jumps from web chat to WhatsApp or voice, GPT‑5 helps our agent follow the thread.
• Sharper understanding of ambiguity: GPT‑5 interprets vague or incomplete inputs with higher accuracy, prompting for clarification and guiding users toward resolution faster. Vague requests like “I need help with my plan” are clarified faster with smarter follow-ups and clearer next steps.
• Reliable execution of multi-step execution: Our AI agent uses Actionbooks to automate structured workflows like returns, reorders, or cancellations. GPT‑5 increases accuracy and consistency across these flows to reduce failure and improve containment.

Our model selection approach

We don’t believe in model monocultures. Instead of relying on a single foundation model, we match the best model to each task, which is based on real-world performance, cost-efficiency, and user impact.

Some examples of how we apply in practice:

• GPT‑5: Powers longer context reasoning and automation, structured workflows, and omnichannel conversations - where deep reasoning and memory make a clear difference.
• Gemini Flash: Used for real-time safeguards and hallucination detection, where fast and consistent behavior is essential.
• Claude Sonnet 4: Used in Test Center (part of Trust OS) to evaluate conversation quality and multi-turn reasoning in more complex, in-depth decision environments.

This modular approach lets us continuously optimize for speed, safety, and task-fit without compromising trust or agility.
 

Business impact

We didn’t upgrade to GPT‑5 to chase benchmarks, we adopted it to solve real customer service problems. With GPT‑5 powering key parts of the Sendbird AI agent, businesses can now automate more complex customer interactions without sacrificing accuracy, context, or control.

• Handle vague requests with smarter clarification and faster routing.
• Resolve multi-step workflows end-to-end, without manual intervention.
• Maintain context across channels with no repeated steps.
   

Our commitment is simple: AI agents that are fast, accurate, and capable. If you’re ready to see it in action, we’re here.