AWS Machine Learning
·
3 days ago
Amazon Bedrock AgentCore Gateway now supports OAuth 2.0 Token Exchange (RFC 8693) to enable secure on-behalf-of token exchange in multi-tenant AI agent architectures, allowing agents to call downstream APIs with tokens bound to specific users and tenants rather than the agent's service identity. The reference implementation demonstrates the pattern using TravelBot, a multi-tenant booking assistant serving two example tenants (Acme and Globex) with token exchanges orchestrated transparently by AgentCore without requiring agent-side exchange logic. This approach preserves user identity end-to-end through the sub claim while cryptographically scoping each downstream call to a single service through the aud claim, preventing confused deputy vulnerabilities and enabling independent token validation by downstream APIs.
The New Stack
·
3 days ago
Anthropic extended free access to Claude Fable 5 through July 19, marking the third extension in five weeks, while an unreleased model called Claude Honeycomb EAP briefly appeared in Cursor before being removed. The Honeycomb EAP features a one-million-token context window and routes sensitive prompts to Claude Opus 4.8, leading developers to speculate it may be an early preview of Claude Opus 5 launching by end of July. Anthropic has not confirmed the leak or provided a timeline for Fable 5 becoming a permanent subscription benefit, leaving paid users frustrated as their usage allowances remain exhausted without resets.
AWS Machine Learning
·
3 days ago
Amazon SageMaker AI launched a UI in Studio for generative AI inference recommendations, enabling users to find optimal instance types and configurations without manual benchmarking. The feature uses preset use-case profiles and optimization goals to generate production-ready configurations in minutes for common workloads and hours for custom ones, with no additional cost beyond standard compute charges. Teams can now compare performance trade-offs and deploy recommended configurations through a visual interface without writing code.
The Neuron
·
3 days ago
Agent Draw uses voice descriptions to automatically create and update drawings on tldraw, an infinite-canvas SDK, while a user presents by speaking descriptions into rectangular areas they define. Claude Opus 3.5 demonstrated the strongest results, producing a fully realized cricket scene with the pen tool, while smaller models like Claude Haiku and Gemini Flash settled for simpler primitive shapes. The implementation queues multiple capture requests, transcribes speech via Mistral's Voxtral model, and removes unnecessary agent actions like camera repositioning and shape-overlap review to reduce model calls by roughly half per drawing.
