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Scarlett Johansson and Sky: resemblance is not proof of voice cloning
The Sky controversy requires careful attribution. A listener's perception of resemblance, a person's objection and a provider's account of casting are different kinds of evidence. None should silently become a proven technical finding about the source of a voice.
What each side said
NPR reporter Bobby Allyn, who received Johansson's statement, reported that she had declined an invitation to license her voice and objected to Sky's resemblance to it. OpenAI said Sky came from a different professional actress and was not intended to imitate Johansson; it also announced a pause. This account reports those positions, not a finding that her voice was cloned.
Sources: NPR / Ideastream Public Media: NPR interview with Bobby Allyn about the statement Johansson supplied to himOpenAI: How the voices for ChatGPT were chosen: OpenAI's casting account and response
Separate four claims before investigating
A clip may prompt several questions: does it sound similar, who performed the source recording, what data produced the system, and what permissions applied? Evidence for one question does not automatically answer the others.
- Identify the exact demo, voice name, release and recording date. A later version or edited comparison may not represent the disputed output.
- Save the complainant's statement and the provider's response with their dates. Attribute each assertion to its speaker.
- Look for production records, casting information or attributable testimony that addresses the claimed source. Do not substitute a listener poll for those records.
- State what remains unavailable. If the source recordings or training records are not public, explain that limit rather than assigning an unsupported cloning verdict.
Use language that survives a correction
‘The performer objected to a resemblance’ accurately identifies an objection. ‘The provider says another actor supplied the voice’ identifies a response. A headline declaring proven copying would require additional evidence beyond those statements.
Keep screenshots as records of what a webpage displayed, not as evidence of an audio model's provenance. isGenAI does not authenticate voices through image uploads, and this historical guide does not provide an audio similarity test.
Questions about this case
Does this case establish that OpenAI cloned Scarlett Johansson's voice?
The cited statements do not establish that. Johansson objected to the resemblance; OpenAI said a different actress supplied Sky. This guide does not independently determine the recordings or training data used.
Sources and dates
- NPR interview with Bobby Allyn about the statement Johansson supplied to him — NPR / Ideastream Public Media, 21 May 2024.
- How the voices for ChatGPT were chosen: OpenAI's casting account and response — OpenAI, 19 May 2024.
Sources checked on 27 September 2026. Linked reporting and official statements establish the attributed facts; the review steps are isGenAI’s analysis.
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