exaBase AI Launches Latest Model 'Claude Sonnet 5'

Exa Enterprise AI Inc. (Minato-ku, Tokyo; Representative Director: Takuma Ooku, hereinafter "Exa Enterprise AI"), a group company of ExaWizards Inc. (Minato-ku, Tokyo; President and CEO: Makoto Haruta, hereinafter "ExaWizards"), announces the launch of 'Claude Sonnet 5', the latest model released by Anthropic on June 30 (US time), on its enterprise generative AI service 'exaBase AI' (hereinafter "exaBase AI"), which has achieved the No.1 market share*1. The model excels in planning, using tools such as browsers and terminals, and autonomous task execution, offering performance close to the higher-tier 'Claude Opus 4.8' in a more accessible and secure manner.

Additionally, the service 'Claude Fable 5'*3, which was temporarily suspended at the request of the U.S. government, will now resume operations.

- Key Features of Claude Sonnet 5

This model excels at planning, skillfully using tools like browsers and terminals, and autonomously advancing tasks through independent reasoning. Compared to the previous model 'Claude Sonnet 4.6', it shows significant improvements in agent-related capabilities such as reasoning, coding, and knowledge work.

Safety has also been enhanced, with a reduced rate of unintended incorrect behaviors. However, its capability in cybersecurity-related tasks is intentionally limited compared to the higher-tier 'Claude Opus 4.8'. A real-time safety safeguard function that detects and blocks dangerous usage is enabled by default.

- Usage Conditions

Existing exaBase AI users can access Claude Sonnet 5 immediately without any additional registration. There are no special conditions. Users can experience the new model’s features using the same interface as before. For more details, please contact us via the link below.

- About exaBase AI (formerly exaBase Generative AI)

Since the launch of its paid service in June 2023, exaBase AI has been adopted by approximately 1,400 companies. The platform addresses enterprise challenges related to security and compliance in generative AI usage, offering administrators features such as usage monitoring and prohibited word registration. It also enables companies to leverage generative AI with their proprietary data by allowing users and administrators to upload internal files and use them for conversations and content generation.

For more information about exaBase AI, please visit: https://exawizards.com/exabase/gpt

*1 Fuji Keizai Research Institute, '2026 Comprehensive Survey on the AI Market Soaring with Generative AI and AI Agents' <2024 Results, Third-Party Conversational Generative AI Application Vendor Share> *2 Name changed from 'exaBase Generative AI' to 'exaBase AI (exaBase AI)' in July 2026.

https://exawizards.com/archives/32249/ *3 For details on 'Claude Fable 5' availability, refer to the press release dated June 10, 2026.

https://exawizards.com/archives/32094/

*4 Company names, product and service names are trademarks or registered trademarks of their respective owners. *5 Image 1 was generated using exaBase AI.