Today, Anthropic launched Claude Sonnet 4.5 — its most powerful model yet for real-world agents, coding, and complex workflows. We are excited to make it immediately available in Zencoder.
In our extensive pre-launch testing, we observed:
- Smarter, longer-running agents: Our Zen Agents powered by Sonnet 4.5 handled hours-long migrations and feature implementations with greater stability and reliability.
- Enterprise-grade expertise: Sonnet 4.5 is better at instruction following and context management. Combined with Multi-Repo understanding, our agents are delivering record levels of accuracy and speed across Fortune 500 codebases.
- Improved performance. On our internal benchmarks, Sonnet 4.5 already shows a significant 23% improvement in speed compared to Sonnet 4. We continue to optimize the agentic harness to get the full potential of the new model.
Why it matters:
- For developers, it means less time debugging and more time building.
- For enterprises, it means higher ROI from AI adoption and lower operational risk.
- For the market, it highlights how quickly AI is evolving—and how Zencoder ensures those leaps translate into production-ready value.
With Claude Sonnet 4.5 + Zencoder’s Multi-Repo Understanding + Zen Agents, the future of AI-powered development is here—and it’s raising the bar.