PhysDesignBench
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Design task · v2

Ring-XC-v2

Four-Wavelength Four-Port Ring Selective Cross-Connect

Design a four-wavelength, four-input, four-output blocking-aware ring-selective cross-connect with independently compiled wavelength routes and trusted optical, electrical, thermal, DRC, and LVS verification.

Runs
13
Scored finals
1 of 13
Best final
S = 0.43 GPT-6 Astra · Codex
Score over timeBest-so-far score S for each run · small dots are probes, large dots final submissions
Score S from 0 to 1 against elapsed minutes. Final scores: GPT-6 Astra (Codex) 0.433; Fable 5.1 (Claude Code) Invalid; Gemini 4 Argon (mini-SWE-agent) Invalid; GLM 5.3 Flash (high) (Claude Code) Invalid; GLM 5.3 Flash (max) (mini-SWE-agent) Invalid; GPT-5.6 Sol (Codex) Invalid; GPT-6.1 Sol (Codex) Invalid; GPT-6.1 Sol (mini-SWE-agent) Invalid; Kimi K3.1 Pro (Claude Code) Invalid; Muse Wonder (high) (Muse Code) Invalid; Opus 5.5 (Claude Code) Invalid; Sonnet 5.5 (mini-SWE-agent) Invalid; Sonnet 5.5 (high) (Claude Code) Invalid.0.000.250.500.751.000153045607590105120135Elapsed time (min)Score SGPT-6.1 Sol · mini-SWE-agent: final Invalid at 122 minSonnet 5.5 · mini-SWE-agent: final Invalid at 110 minFable 5.1 · Claude Code: final Invalid at 89 minGemini 4 Argon · mini-SWE-agent: final Invalid at 121 minGLM 5.3 Flash (high) · Claude Code: final Invalid at 121 minGLM 5.3 Flash (max) · mini-SWE-agent: final Invalid at 118 minGPT-5.6 Sol · Codex: final Invalid at 129 minGPT-6.1 Sol · Codex: final Invalid at 132 minKimi K3.1 Pro · Claude Code: final Invalid at 120 minMuse Wonder (high) · Muse Code: final Invalid at 122 minOpus 5.5 · Claude Code: final Invalid at 117 minSonnet 5.5 (high) · Claude Code: final Invalid at 115 minGPT-6 Astra · Codex: final S = 0.433 at 122 min

Showing 13 of 13 runs. Hover a line or a model to isolate it; click a model to hide or show it.

Final layouts

Every run’s final GDS, at one scale.

The design each run ended with, drawn from its evaluated GDS. Every layout uses the same physical scale, so sizes compare directly. Hatched layouts failed a validity gate and score zero. Select a layout to zoom and toggle its layers.

  • Optical mask
  • Heater
  • Metal
  • Pad opening
  • Phase marker
  • Ring marker
  • Termination marker
  • Crossing marker
  • Coupling marker

  • Ring-XC-v2 · Codex · GPT-6 Astra

    S = 0.433 · scale bar 500 µm

    Fit
    GPT-6 AstraCodexS = 0.43

  • Ring-XC-v2 · Claude Code · Claude Fable 5.1

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    Fable 5.1Claude CodeInvalid · S = 0
  • No final GDS: the evaluator rejected the final source before producing a layout
    Gemini 4 Argonmini-SWE-agentInvalid · S = 0
  • No final GDS: the evaluator rejected the final source before producing a layout
    GLM 5.3 Flash (high)Claude CodeInvalid · S = 0
  • No final GDS: the evaluator rejected the final source before producing a layout
    GLM 5.3 Flash (max)mini-SWE-agentInvalid · S = 0

  • Ring-XC-v2 · Codex · GPT-5.6-sol

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    GPT-5.6 SolCodexInvalid · S = 0

  • Ring-XC-v2 · Codex · GPT-6.1-sol

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    GPT-6.1 SolCodexInvalid · S = 0

  • Ring-XC-v2 · mini-SWE-agent · GPT-6.1-sol

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    GPT-6.1 Solmini-SWE-agentInvalid · S = 0

  • Ring-XC-v2 · Claude Code · Kimi K3.1 Pro

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    Kimi K3.1 ProClaude CodeInvalid · S = 0

  • Ring-XC-v2 · Muse Code · Muse Wonder

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    Muse Wonder (high)Muse CodeInvalid · S = 0

  • Ring-XC-v2 · Claude Code · Claude Opus 5.5

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    Opus 5.5Claude CodeInvalid · S = 0

  • Ring-XC-v2 · mini-SWE-agent · Claude Sonnet 5.5

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    Sonnet 5.5mini-SWE-agentInvalid · S = 0

  • Ring-XC-v2 · Claude Code · Claude Sonnet 5.5

    Invalid final · S = 0 · scale bar 500 µm

    Fit
    Sonnet 5.5 (high)Claude CodeInvalid · S = 0