What's Changed

• Add Toolsets and Deferred Tools by@DouweM in#2024
• Support AG-UI protocol for frontend-agent communication by@stevenh in#2223
• Add identifier field to BinaryContent class by@GDaamn in#2231
• Add OpenAI models o1-pro, o3-pro, o3-deep-research, computer-use by@zachmayer in#2234
• Add grok-4 and groq kimi-k2 models by@zachmayer in#2235
• Remove old Google models by@DouweM in#2220
• Change clai default model to gpt-4.1 by@samuelcolvin in#2227
• Fix VertexAI Empty Model Parts Error by@caesarnine in#2203
• Remove incorrect tool call id from OpenAI tool call delta by@naveen-corpusant in#2210
• Speed up methodAgentRunResult._set_output_tool_return by 18798% by@misrasaurabh1 in#2196
• Speed up methodUsage.opentelemetry_attributes by 85% by@misrasaurabh1 in#2198
• Nicer errors under the capture_run_messages context by@alonme in#2219

New Contributors

• @naveen-corpusant made their first contribution in#2210
• @caesarnine made their first contribution in#2203
• @GSemikozov made their first contribution in#2193
• @alonme made their first contribution in#2219
• @GDaamn made their first contribution in#2231

Full Changelog:v0.4.3...v0.4.4

Contributors