GOF V11.8 Download

Release Date: Jun 29 2026

GOF Platform integrates five functional components, ECO, Formal, LEC, Debug and AI.

No license needed to try. GOF runs free for netlists under 500K bytes — download, extract, and run the bundled example below. For production-size designs, request an evaluation license.

5-Minute First ECO

Once downloaded, run a real ECO immediately. The bundled examples work in free mode.

Option A — Automatic ECO (no AI)

The examples/auto_eco folder compares a reference netlist against an implementation and writes the ECO result. Zero dependencies.

tar xzf gof118_centos7.tar.gz
cd GOF && make
cd examples/auto_eco
../../bin/gof -run eco_example.pl

The ECO'd netlist is written to imp_eco.gv.

Option B — AI-Driven ECO (natural language)

The examples/ai_eco folder runs an ECO from a plain-English spec via GOF's AI agent (Claude Code, Codex, or opencode).

# Launch the GOFAI server once:
# $GOFDIR/scripts/gofai_server.py --platform claude --model <model>

# Submit an ECO spec in plain English:
$GOFDIR/scripts/gofai_client.py "Do netlist eco spec $GOFDIR/examples/ai_eco/eco_spec1.txt"

See the GOF AI workflow and SKILL.md in the release.