TL;DR: Callstrike's free deepfake simulation generator lets security teams create personalised deepfake training videos without a sales call or enterprise contract. Upload a 10-second video, a reference face image, and a 3-second voice clip. The tool produces a fully narrated 4-minute documentary with face-swapped video, cloned voice, and side-by-side comparison. Processing takes approximately 10 minutes. The output is a ready-to-use security awareness training asset that shows employees exactly how convincing synthetic impersonation has become.
Most deepfake simulation tools require a sales call. This one doesn't.
If you have ever tried to get a deepfake simulation from an enterprise security vendor, you know the process. A scoping call. A creative brief. Two weeks of back and forth. An approval cycle. Then maybe, eventually, a finished video that you can show your team.
That model made sense when deepfake generation required expensive infrastructure and manual production. It does not make sense anymore.
We built a free deepfake simulation generator that lets any security team create a personalised deepfake training video in under 10 minutes. No vendor call. No contract. No IT integration. Upload three files, click a button, and get a fully produced 4-minute deepfake documentary back.
This is what the output looks like.
What you need to get started
The generator requires three inputs. Nothing else.
- A source video (10 seconds to 2 minutes). This is the base footage that will be face-swapped. A short selfie video works. A WhatsApp video works. Anything with a clear face.
- A voice sample (3 seconds minimum). An audio clip of the person whose voice you want to clone. The AI needs enough to learn the vocal pattern.
- A target face image. A clear, front-facing photo of the person whose face will replace the original in the video.
That is it. No API keys, no integrations, no infrastructure. The tool runs in the browser on callstrike.ai.
How the generator works, step by step
Step 1. Upload your three inputs
Navigate to the Create Deepfake Video page. You will see three upload sections. Upload your source video, audio sample, and target face image. You can also choose from previously created clone voices if you have used the platform before.
The tool supports common formats. MP4 for video, MP3 or WAV for audio, PNG or JPG for the face image.
Step 2. Review the consent modal and start generation
Before processing begins, the platform shows an AI-Generated Training Video Creation consent modal. This confirms that you have proper authorisation to use the uploaded content, that the videos are intended for internal organisational use, and that uploaded content will be processed securely.
Click "Accept and Continue" to start generation.
Step 3. Wait approximately 10 minutes while the AI processes
The platform handles everything from here. You will see real-time progress updates as the system moves through each stage. Uploading assets, extracting video frames, starting GPU processing, running the face swap model, cloning the voice, generating comparison videos, and uploading the final output.
You can close the tab and come back later. The platform sends an email when the video is ready.
Step 4. Download the finished deepfake documentary
When processing completes, you get a results page with multiple output options.
The Generated Video tab shows your finished deepfake. The Original Source Video tab shows the unmodified input for comparison. You can also choose from multiple comparison formats. Side by Side (original and deepfake next to each other), Top/Bottom (stacked vertically), or Picture in Picture (original in corner).
You can add ambient sound to make the video feel more natural, name the video for your library, and download it directly or save it to your account.
The side-by-side comparison format is particularly effective for training. Employees see the original footage next to the deepfake version and can study exactly where the swap happened and what artefacts to look for.
Why a 4-minute documentary beats a 15-second face swap
Most deepfake awareness training tools produce short clips. A quick face swap. A voice sample. Maybe a side-by-side comparison.
The problem is that a 15-second clip does not replicate the experience of an actual deepfake attack. Real attacks are sustained. They build context. They create urgency over time. A short clip says "deepfakes exist." A 4-minute documentary says "this is what it would feel like if it happened to you."
The generator produces a fully structured documentary that includes narration, context, the deepfake itself, and a before-and-after comparison. Security teams can use it immediately in training sessions, board presentations, tabletop exercises, or compliance reviews.
How this compares to other deepfake simulation approaches
Vendors like Breacher and Mirage Security offer deepfake simulation capabilities, but through managed services. That means scoping calls, professional services engagements, multi-week turnarounds, and enterprise contracts.
Callstrike's generator takes a different approach. We built our own deepfake infrastructure specifically so we could make it self-serve and free. The processing runs on dedicated GPU clusters, the face swap and voice cloning models are proprietary, and the documentary production is fully automated.
| Callstrike Generator | Managed Simulation Vendors | |
|---|---|---|
| Time to first video | ~10 minutes | 1-4 weeks |
| Cost | Free | Professional services pricing |
| Self-serve | Yes | No (requires vendor involvement) |
| Personalisation | Any face, any voice | Limited to vendor's production capacity |
| Output format | Full documentary with comparison | Varies by vendor |
The point is not that managed simulations are bad. For large-scale enterprise campaigns with hundreds of targets, a managed approach makes sense. But for security teams that need to show their board a deepfake of the CEO tomorrow morning, waiting two weeks is not an option.
What security teams are using this for
Since launching the generator, we have seen four primary use cases.
Employee awareness sessions. Security teams generate a deepfake of a senior leader and play it during an all-hands meeting or training session. The reaction is always the same. People stop checking their phones and start paying attention.
Board and leadership demonstrations. CISOs use the tool to show the board exactly what a deepfake attack targeting their organisation would look like. A 4-minute video of the CEO saying something they never said is more convincing than any slide deck.
Tabletop exercises. Incident response teams use generated deepfakes as scenario inputs for tabletop exercises. "Your CFO just received this video call from the CEO requesting an urgent wire transfer. What do you do?"
Risk documentation. Compliance teams include generated deepfakes in risk assessments to demonstrate the organisation's exposure to synthetic media threats.
The tool is free because we believe the best way to train someone to recognise a deepfake is to put one in front of them. Not in two weeks. Right now.
If you want to go beyond individual videos and run full-scale deepfake phishing simulations across your organisation, including AI voice calls, video conference infiltration, and WhatsApp phishing, the Callstrike platform handles that too. But the generator is the fastest way to see what is possible.
Frequently Asked Questions
Q: Is the deepfake simulation generator really free?
A: Yes. The generator is completely free to use with no usage limits on the number of simulations you can create. Callstrike built its own deepfake infrastructure, which means the marginal cost per video is low enough to offer it as a self-serve tool. No credit card or enterprise contract is required.
Q: How realistic are the generated deepfakes?
A: The quality depends on your input footage. Clear, well-lit source videos with front-facing angles produce the most convincing results. The Standard mode generates a 15-second output in about 10 minutes. High Quality mode produces longer, higher-resolution videos with additional processing time.
Q: What safeguards prevent misuse of the tool?
A: The platform requires explicit consent acknowledgement before every generation. All usage is logged with a full audit trail. The tool is intended for authorised security training, board demonstrations, and compliance reviews. Callstrike's Authorised Use Policy prohibits non-consensual use, fraud, political manipulation, and any illegal activities, with active monitoring and law enforcement cooperation.
Q: Can I use this for compliance and audit purposes?
A: Yes. Every generated video is logged with timestamps, input metadata, and user attribution. Security teams can use the audit trail to document that deepfake awareness training was conducted, which inputs were used, and when the training occurred. This supports frameworks like NIST, ISO 27001, and SOC 2 that require evidence of security awareness activities.
Ready to generate your first deepfake simulation? Try the free generator now. No signup needed.
Want to run deepfake simulations at enterprise scale? Book a demo to see the full platform.
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