Which AI model writes better RTL?

HDL Arena helps ASIC and RTL engineers compare AI models generating Verilog, SystemVerilog, or VHDL from the same hardware specification. Users review anonymous code candidates, vote, and then inspect model identities and available compilation and generic synthesis results.

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Learn about AI-generated RTL

• Why use HDL Arena instead of a generic AI chat tool?

  Blind RTL comparison, practical engineering review, and approved learning workflows—plus the data-handling and verification limits to understand first.

• Why RTL generation is different from just coding

  Concurrent hardware, finite widths, clocks, and cycle-level contracts: why convincing HDL needs more than a working algorithm.

• How compile and synthesis is done in our flow

  Follow original RTL through isolated Icarus compilation and generic Yosys synthesis—and understand what a passing check does not prove.

• How ranking works

  Seeded starting ratings, the default 1000-point baseline, and blind local votes: a practical guide to the Elo-style leaderboard.

• How to write best prompts for best RTL

  A reusable hardware specification template, a stronger multiplier prompt, and the edge cases worth spelling out before generation.

• DSP, memory or other RTL blocks: how do they work?

  From signed MACs and pipelines to memories, FIFOs, counters, and state machines: the circuit patterns behind useful RTL.