Synopsys and OpenAI signed a multi-year agreement on September 30 to build GPT-Synopsys, a model trained to run electronic design automation tools rather than write general chat. The companies will share revenue when customers use it, and Synopsys shares rose as much as 7% after the announcement and a raised forecast.
OpenAI will pay a training subscription so the model can learn Synopsys tools. When a customer uses the product, the split depends on how much the model improves a chip’s design. CEO Sassine Ghazi described that structure in an interview with Reuters. The model is meant to sit on OpenAI-hosted infrastructure, work with a customer’s agent harness, and plug into Synopsys.ai and the Autopilot platform Synopsys introduced on September 28.
The job the model is being asked to do starts with a circuit description and runs through placement of billions of transistors. Engineers would hand it objectives — power, performance, area, timing, verification closure — and review the result. Greg Brockman, OpenAI’s president and co-founder, said the aim is to cut weeks or months from that loop. Early engagements with semiconductor customers are already underway, Synopsys said in its September 30 release.
Key takeaways
- Multi-year pact to deliver GPT-Synopsys, a model built to operate Synopsys EDA tools.
- OpenAI licenses those tools for training; revenue is shared based on design improvement.
- SNPS rose as much as 7%; Ghazi guided fiscal 2027 revenue growth of 15%, above the 11.19% LSEG consensus.
What the GPT-Synopsys revenue split actually covers
This is not a model-release day. There is no public benchmark, no API price, and no ship date in the release. The commercial piece is the unusual part: a training fee paid by OpenAI, then a shared cut tied to design improvement rather than a flat seat license.
The same investor day produced a separate number. Ghazi said Synopsys now expects 15% revenue growth in fiscal 2027, above the 11.19% analyst estimate compiled by LSEG. On September 30 the company also announced a multi-year IP agreement with Amazon valued at more than $1 billion. The three items landed together, so the 7% share move is not a clean read on the OpenAI contract alone.
For creators tracking how labs are selling into industrial software rather than chat products, the closer parallel on this site is the creator stack piece: tools that sit inside an existing workflow, not a new destination app. Primary reporting is Reuters’ September 30 account and the Synopsys newsroom note.
What to watch next
The missing dates are a customer availability window and a named design partner. Autopilot was slated for late 2026. If GPT-Synopsys is meant to be integrated with that platform, the investor-day follow-up is where a ship quarter would show up.