Advanced Rendering
Custom RenderObject & Canvas
ID: google/flutter-custom-render-objectImplement a custom RenderBox with layout constraints, custom painting, intrinsic dimensions, and pointer hit-testing.
Cross-Model Benchmark Trials
Comparison of agent configurations evaluated on this task:
| Model & Harness | Tooling | Status | Composite Reward | Actions |
|---|---|---|---|---|
|
Claude 3.5 Haikuclaude-code
|
Baseline | PARTIAL | 0.36 | Inspect Trial Details → |
|
GPT 4o Minicodex-agent
|
Baseline | AgentTimeoutError | — (Errored) | Inspect Trial Details → |
|
Gemini 3.5 Proantigravity-sdk
|
Dart MCP + Skills | PARTIAL | 0.69 | Inspect Trial Details → |
|
Gemini 3.1 Flash Litegemini-cli
|
Baseline | AgentTimeoutError | — (Errored) | Inspect Trial Details → |
|
GPT 5codex-agent
|
Dart MCP + Skills | PARTIAL | 0.72 | Inspect Trial Details → |
|
Claude 3.5 Sonnetclaude-code
|
Baseline | PARTIAL | 0.52 | Inspect Trial Details → |
|
DeepSeek Coder V2deepseek-cli
|
Baseline | PARTIAL | 0.42 | Inspect Trial Details → |
|
DeepSeek V3deepseek-cli
|
Baseline | PARTIAL | 0.49 | Inspect Trial Details → |
|
DeepSeek R1deepseek-cli
|
Dart MCP + Skills | PARTIAL | 0.72 | Inspect Trial Details → |
|
Claude 3.7 Sonnetclaude-code
|
Dart MCP + Skills | PARTIAL | 0.71 | Inspect Trial Details → |
|
o3codex-agent
|
Dart MCP + Skills | PARTIAL | 0.73 | Inspect Trial Details → |
|
GPT 4ocodex-agent
|
Baseline | PARTIAL | 0.47 | Inspect Trial Details → |
|
Gemini 3.5 Flashantigravity-sdk
|
Dart MCP + Skills | PARTIAL | 0.65 | Inspect Trial Details → |