Closed Source

Tools for simulation and debug, synthesis and physical implementation, timing and physical signoff, analog design, and AI products used in these workflows.

Core EDA

• Cadence Genus / Innovus+ / Tempus — Genus performs RTL synthesis, Innovus+ connects synthesis, placement, clock-tree synthesis, and routing, and Tempus provides static timing analysis and signoff. Innovus+ Tempus
• Cadence Virtuoso Studio / Spectre — Virtuoso supports schematic entry, layout, and design analysis for custom and analog ICs, while Spectre provides transistor-level SPICE, analog, and RF simulation. Spectre X
• Cadence Xcelium — A logic simulator for IP and SoC verification, supporting SystemVerilog, VHDL, SystemC, UVM, mixed-signal, low-power, and X-propagation verification.
• Siemens Calibre — A physical verification and signoff tool family covering design rule checking (DRC), layout versus schematic (LVS), parasitic extraction, and reliability verification.
• Synopsys Fusion Compiler / PrimeTime — Fusion Compiler implements RTL-to-GDSII digital designs, while PrimeTime provides static timing, signal-integrity, and variation-aware timing signoff analysis. PrimeTime
• Synopsys VCS / Verdi — VCS runs HDL and testbench simulation, while Verdi combines source, waveform, state-machine, and coverage views to debug design and verification issues. Verdi

AI EDA Platforms

EDA Vendors

• Cadence AgentStack / JedAI — Coordinates collaboration among domain agents; JedAI supplies the underlying data, models, and platform infrastructure.
• Cadence AuraStack AI Super Agent — Extends agent workflows to PCB and advanced packaging design.
• Cadence Cerebrus — Uses machine learning to explore digital implementation parameters and flows to optimize chip PPA.
• Cadence ChipStack AI Super Agent — Targets digital front-end design and verification, covering specifications, RTL, testbenches, regression testing, and debugging. Mental Model and Workflows
• Cadence InnoStack AI Super Agent — Orchestrates back-end flows, analyzes constraints, and optimizes PPA for digital implementation and signoff.
• Cadence Maestro (2026) — Combines domain-post-trained models, decision models, and agent skills with EDA/SDA solver feedback and RL for chip and system design; initially available to selected early-access customers.
• Cadence ViraStack AI Super Agent — Organizes design exploration, simulation analysis, and verification workflows for custom and analog ICs.
• GPT-Synopsys (2026) — OpenAI and Synopsys are developing specialized models for EDA tool use, with planned integration into customer harnesses, Synopsys.ai, and Autopilot.
• Siemens Aprisa AI — Integrates PPA design-space exploration and natural-language assistance into RTL-to-GDS implementation, generating tool configurations and flow examples.
• Siemens Calibre Vision AI — Combines OASIS results with AI spatial-pattern clustering to organize large volumes of DRC violations into actionable debugging findings for teams.
• Siemens Fuse EDA AI — Connects design tools through multimodal EDA data, RAG, MCP, and Agent Skills, organizing hierarchical planning, dynamic tool discovery, and feedback loops. Continuous Verification Architecture
• Siemens Questa One — Combines AI-assisted verification with an Agentic Toolkit for verification planning, execution, debugging, and coverage analysis.
• Siemens Solido AI — Applies generative and agentic AI to schematics, simulation, variation-aware verification, library characterization, and layout, with Fuse coordinating workflows across tools.
• Synopsys AgentEngineer / Autopilot — A portfolio of agents for long-running engineering tasks across design stages, planned for availability by the end of 2026. AMD / Microsoft Case Studies
• Synopsys.ai — Includes AI products for design-space, verification, test, and analog design optimization, connecting DSO.ai, VSO.ai, TSO.ai, and ASO.ai. Copilot
• UniVista Design Agent (UDA) — Organizes AI workflows around design requirements, RTL, verification, and debugging, with EDA tool integration.

AI Chip Design Platforms

• Agentrys Studio — Provides multi-agent workflow building, EDA tool connections, iterative evaluation, and team deployment.
• ChipAgents — An agent platform for chip design and verification that also introduces the Build-A-Chip-Bench long-running workflow evaluation initiative.
• Chipmind — Uses engineering context and EDA tools to assist SoC design, integration, and debugging.
• ChipNexus NEX — Formerly Primis AI, a commercial chip design agent framework with command-line, collaboration, and multi-tool orchestration support.
• Cognichip — An ACI platform for semiconductor design that integrates generation, modification, verification, and optimization into a unified workflow.
• Moores Lab AI — Provides VerifAgent, DebugAgent, and CoverageAgent for testbench generation, debugging, and coverage improvement loops.
• Silimate — AI agents for RTL front-end design that combine functional debugging with PPA optimization.