GOF V11.9 Download

Release Date: Jul 26 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 gof119_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. Install the shipped SKILL.md in your AI CLI (Claude Code, Codex, opencode, Kimi, or Cline), then type the ECO request in natural language. The skill guides the CLI to launch the GOFAI server, create the ECO script, and run it with GOF automatically.

# In your AI CLI (with SKILL.md installed):
Use GOF to do eco spec file $GOFDIR/examples/ai_eco/eco_spec1.txt

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


Release Notes:


GOF V11.9 (Centos7/8)

For RHEL7/RHEL8 Centos7/Centos8 and up

ID: 9e4926082d25de38e659d09c4de776f0


GOF V11.9 (Centos6)

For RHEL6/Centos6

ID: 1612f5f74c3f374cf04af6b8c647465a

Warning! RHEL6/Centos6 version doesn't support RTL Guided ECO and RTL to Netlist LEC



GOF V11.9 (WSL)

For Windows Subsystem for Linux

ID: b6ce5d84f6893b8a1a7d009d14c5a56e


License Manager

GOF License Manager Daemon

ID: e88a338c717fbcab6ca7cf21e28aee3b


Request Evaluation License

For production-size designs over 500K bytes. The tool runs free below that limit.

Complete the form to request an evaluation license



Support Documents

  • User Manual in HTML
  • User Manual in PDF


  • Follow us:
    © 2026 NanDigits Design Automation. All rights reserved.