Pricing

Every account starts with $4.00 of credit; no card required, which is roughly 11 typical runs. Each plan adds its own monthly credit, metered at a better rate than usage credits bought separately.

Free

$0.00

Try it with $4.00 of credit. No card required.

$4.00 of package credit, once, at signup
Around 11 typical agentic runs
5 free runs each per referral
Every workflow: author, project, debug and optimize
Verilog, SystemVerilog and VHDL
Community support

Start free

Pro

Max

$100.00/mo

For heavy, sustained use — over five times Pro's monthly volume.

$100.00 of package credit every month
5.3x the monthly usage of Pro
Around 303 typical agentic runs per month
Everything in Pro
Priority support

Get Max

Team

$500.00/mo

For a hardware team sharing one workflow.

$500.00 of package credit every month
28x the monthly usage of Pro
Around 1,600 typical agentic runs per month
Everything in Pro
Priority support

Get Team

Every turn is charged from credit based on the models, context, and tools used; plan credit is spent first, then any usage credits. Plan credit is granted every month and expires at the end of that month; a yearly plan is paid up front and still receives its credit monthly. A typical agentic run uses about $0.25 of provider cost; that estimate is a guide, not a quota or a fixed per-turn price.

Compare plans

Every plan includes every workflow, language and target. What changes is how much you can run each month, the rate that usage is metered at, and the level of support.

Features and monthly usage included with each plan
Plan	Free	Pro	Max	Team
Monthly usage
Plan price	$0.00	$20.00/month	$100.00/month	$500.00/month
Included credit	$4.00 once	$20.00/month	$100.00/month	$500.00/month
Estimated typical agentic runs	~11 total	~57/month	~303/month	~1,600/month
Usage capacity vs. Pro	—	1×	~5.3×	~28×
Included credit expires	Never	End of each month	End of each month	End of each month
Buy additional usage credits anytime	Included	Included	Included	Included
AI-assisted RTL workflows
Agentic RTL authoring	Included	Included	Included	Included
Plan, generate & verify RTL	Included	Included	Included	Included
Project mode for existing RTL repositories	Included	Included	Included	Included
Waveform-based RTL debugging	Included	Included	Included	Included
RTL optimization with equivalence proofs	Included	Included	Included	Included
HDL languages & FPGA targets
Verilog & SystemVerilog	Included	Included	Included	Included
VHDL	Included	Included	Included	Included
Xilinx, Intel & Lattice FPGA targets	Included	Included	Included	Included
VS Code extension	Included	Included	Included	Included
Billing
Monthly billing	—	Available	Available	Available
Annual billing	—	15% off	15% off	15% off
Referral bonus	5 runs each	5 runs each	5 runs each	5 runs each
Support
Community support	Included	Included	Included	Included
Priority support	Not included	Included	Included	Included

Run counts are estimates from a typical agentic run, not a quota; actual usage depends on the models, context and tools a turn needs.

Frequently asked questions

Quick answers about plan prices, included credit, usage-based billing, and the workflows every plan covers.

How much does SiliCode cost?

SiliCode offers four plans: Free at $0, Pro at $20/month, Max at $100/month, and Team at $500/month. Paid plans include monthly AI usage credit, and annual billing is available with a 15% discount.

Is SiliCode free to use?

Yes. SiliCode offers a Free plan with no credit card required. New accounts receive $4 of one-time AI usage credit to try SiliCode's RTL generation, verification, debugging, and optimization workflows.

Does the SiliCode Free plan expire?

No. The SiliCode Free plan has no monthly subscription fee, and the $4 signup credit does not expire. You can also purchase additional usage credits whenever you need more AI usage.

What is included in the SiliCode Pro plan?

SiliCode Pro costs $20 per month and includes $20 of AI usage credit every month, better usage rates than separately purchased credits, access to all SiliCode RTL workflows, priority support, and monthly or annual billing.

What is the difference between SiliCode Pro, Max, and Team?

The main difference is monthly AI usage capacity. Pro includes $20/month of credit, Max includes $100/month, and Team includes $500/month. Because larger plans are metered at a lower rate, Max provides about 5.3x the monthly usage of Pro, while Team provides about 28x.

What is the SiliCode Max plan?

SiliCode Max costs $100 per month and is designed for engineers with heavy, sustained RTL development workloads. It includes $100 of monthly AI usage credit, approximately 5.3x the monthly usage capacity of Pro, all SiliCode workflows, and priority support.

What is included in the SiliCode Team plan?

SiliCode Team costs $500 per month and is designed for hardware engineering teams with high AI usage. It includes $500 of monthly usage credit, approximately 28x the monthly usage capacity of Pro, access to all SiliCode workflows, and priority support.

How does SiliCode usage-based pricing work?

Each SiliCode turn consumes credit based on the AI models, project context, and tools used during the task. Included plan credit is used first, followed by any additional usage credits purchased separately.

What is an agentic run in SiliCode?

An agentic run is an AI-assisted hardware development task performed by SiliCode, such as planning RTL, generating Verilog or VHDL, verifying a design, debugging waveforms, or optimizing RTL. Actual credit usage varies depending on the complexity of the work.

Can I buy more SiliCode usage credits if I run out?

Yes. Users on Free, Pro, Max, and Team can purchase additional usage credits at any time. Additional credits are used after the included credit available with your plan.

Do unused SiliCode credits roll over?

The $4 signup credit on the Free plan does not expire. Monthly credit included with Pro, Max, and Team expires at the end of each monthly credit period and does not roll over.

Does SiliCode offer annual billing?

Yes. SiliCode offers annual billing with a 15% discount on paid plans. The subscription is paid annually, while included AI usage credit is allocated according to the plan's monthly usage structure.

What HDL languages does SiliCode support?

SiliCode supports Verilog, SystemVerilog, and VHDL. It is designed for AI-assisted FPGA and RTL development, including code generation, verification, debugging, and optimization.

Can SiliCode work with an existing RTL or FPGA project?

Yes. SiliCode includes Project Mode for existing repositories, allowing you to work with an existing Verilog, SystemVerilog, or VHDL codebase while giving the AI relevant project context.

What RTL and FPGA development workflows does SiliCode support?

SiliCode supports agentic RTL authoring, planning, code generation, verification, waveform-based debugging, and optimization with equivalence proofs. It supports Xilinx, Intel, and Lattice FPGA targets and can also be used through the SiliCode VS Code extension.