OpenAI, Anthropic and SpaceX are preparing to go public with minimal transparency on their carbon footprints, raising concerns amid rising energy demands from AI and space technologies.
Three of the world’s most highly valued private companies are edging towards public markets with remarkably little to say about their environmental footprint.
According to a Bloomberg report highlighted by Crypto Briefing on Tuesday, OpenAI, Anthropic and SpaceX have between them offered only limited emissions disclosure, even as investors prepare for listings that could value the trio in the trillions of dollars. None has published a full sustainability report with audited Scope 1, Scope 2 and Scope 3 emissions data, the standard framework used to measure direct pollution, purchased energy use and supply-chain emissions.
That silence stands out against the disclosure practices of larger listed technology groups. Microsoft and Alphabet, Google’s parent company, have each produced detailed sustainability reports and set public climate targets, underscoring how much more information public investors generally expect from companies of this scale.
The contrast is particularly striking given the timing. SpaceX filed its S-1 in May 2026, while OpenAI and Anthropic later submitted confidential IPO paperwork in June, according to reports from Wired and other outlets. OpenAI’s filing has not included details on timing, valuation or share price, while Anthropic has also kept the terms of its prospective offering private.
The issue is not simply one of corporate transparency. AI development is becoming increasingly energy-intensive, with data centres emerging as one of the fastest-growing sources of electricity demand. Wired reported that OpenAI expects heavy compute spending to continue rising sharply through 2028, even as the company pursues growth in sales. That has sharpened questions about the scale of emissions associated with the sector’s rapid expansion.
SpaceX presents a different but related challenge. Its rocket launches rely on fuel-intensive systems, and reports on its IPO plans suggest the company wants to link its future to AI compute satellites and orbital data centres. Yet the environmental implications of those ambitions remain only lightly addressed in the company’s public filings.
The broader backdrop is a weakening of the so-called ESG consensus in financial markets. Some asset managers have retreated from sustainability-focused strategies, and firms may feel less pressure than before to volunteer climate data. Even so, regulatory expectations continue to evolve. US climate disclosure rules, though pared back from their original form, have already established a precedent for material climate-risk reporting, while the European Union’s sustainability regime is even more demanding for companies with operations in its market.
For investors, that leaves an awkward gap. OpenAI and Anthropic are building technologies that may help improve efficiency, optimise power systems and support scientific research. But as they move closer to public ownership, the companies themselves are still offering little clarity on how much carbon their growth is likely to produce.
- https://cryptobriefing.com/openai-anthropic-spacex-emissions-disclosure/ – Please view link – unable to able to access data
- https://www.wired.com/story/openai-confidentially-files-for-ipo/ – OpenAI has confidentially filed for an initial public offering (IPO), following Anthropic’s similar move. The company has not disclosed specifics about the offering, including timing, valuation, or share price. OpenAI’s valuation was last estimated at $852 billion after a $122 billion funding round in March 2026. Despite this, the company projects significant spending on computing power for AI research by 2028, with a projected burn of $85 billion that year, even if sales double from the prior year. Concerns have been raised about the sustainability of data centre expenditure.
- https://www.wired.com/story/ex-openai-staffers-warn-spacex-investors-of-ai-safety-risks/ – Former OpenAI employees and AI safety nonprofits have warned that xAI’s poor safety record could complicate SpaceX’s IPO. They highlight ‘unpriced risks’ related to xAI that could affect SpaceX’s plans to raise up to $75 billion in its IPO. The ex-staffers have co-founded an AI watchdog group to address these concerns and believe investors deserve more information about xAI’s safety practices before SpaceX goes public.
- https://www.techtarget.com/searchenterpriseai/news/366644478/SpaceX-IPO-aims-for-AI-and-orbital-data-centers – SpaceX’s IPO, launched on June 12, 2026, aims to integrate AI systems and orbital data centres into its offerings. The company’s S-1 filing reveals plans to handle energy-intensive AI workloads through AI compute satellites in Sun-synchronous orbit, addressing power constraints in AI data centres. Additionally, SpaceX’s Terafab initiative aims to ease future chip shortages, as semiconductor production is a universal constraint on chip deployment.
- https://www.indmoney.com/blog/us-stocks/spacex-openai-anthropic-ipo-explained – SpaceX, OpenAI, and Anthropic are all pursuing IPOs in 2026, with SpaceX leading the way. The company filed its S-1 prospectus publicly on May 20, 2026, targeting a valuation of $1.75 trillion and aiming to raise approximately $75 billion. OpenAI and Anthropic have confidentially filed their IPO paperwork, with OpenAI’s filing on June 8, 2026, and Anthropic’s on June 1, 2026. The timing of these filings is seen as a response to SpaceX’s historic IPO filing.
- https://www.thepaypers.com/fintech/news/openai-files-confidentially-for-ipo – OpenAI has submitted a confidential draft registration statement to the US Securities and Exchange Commission (SEC) for a proposed initial public offering (IPO). The company has not disclosed specifics about the offering, including timing, valuation, or share price. OpenAI’s valuation was last estimated at $852 billion after a $122 billion funding round in March 2026. Despite this, the company projects significant spending on computing power for AI research by 2028, with a projected burn of $85 billion that year, even if sales double from the prior year.
- https://www.kucoin.com/news/flash/openai-and-anthropic-to-file-ipo-prospectuses-following-spacex-s-historic-filing – OpenAI and Anthropic have filed IPO prospectuses with the SEC, following SpaceX’s historic S-1 filing in May 2026. Anthropic submitted its draft on June 1, with OpenAI filing on June 8. Both companies are working with Goldman Sachs and Morgan Stanley, aiming for a late 2026 or early 2027 listing. Market watchers are closely monitoring the AI sector’s momentum as these companies move toward public markets.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
6
Notes:
The article references a Bloomberg report highlighted by Crypto Briefing on Tuesday, but no specific publication date is provided. The earliest known publication date of similar content is June 27, 2026, when Crypto Briefing published an article titled ‘OpenAI and Anthropic may file IPO prospectuses soon after SpaceX’s historic filing’. ([cryptobriefing.com](https://cryptobriefing.com/openai-anthropic-ipo-filings-spacex/?utm_source=openai)) This suggests that the narrative may be based on a press release or recycled content. The lack of a specific publication date raises concerns about the freshness and originality of the information. Additionally, if earlier versions show different figures, dates, or quotes, these discrepancies should be flagged. If the article includes updated data but recycles older material, this concern should also be noted. Given the absence of a clear publication date, the freshness score is reduced.
Quotes check
Score:
4
Notes:
The article includes direct quotes attributed to Bloomberg, but no specific publication date is provided. Without the ability to verify the earliest known usage of these quotes, it’s challenging to confirm their originality. If identical quotes appear in earlier material, this would indicate potentially reused content. If quote wording varies between sources, this should be noted as a concern. Given the lack of verifiable sources, the quotes cannot be independently verified, leading to a reduced score.
Source reliability
Score:
5
Notes:
The article originates from Crypto Briefing, a niche publication focusing on cryptocurrency and blockchain news. While it has a dedicated readership, its reach and influence are limited compared to major news organisations. The article references a Bloomberg report, but without a specific publication date, it’s difficult to assess the reliability of the original source. If the narrative appears to originate elsewhere, especially from a paywalled source, this should be flagged clearly. Given the uncertainties regarding the original source and the niche nature of Crypto Briefing, the source reliability score is moderate.
Plausibility check
Score:
7
Notes:
The claims about OpenAI, Anthropic, and SpaceX’s limited emissions disclosure amid IPO preparations are plausible, given the increasing scrutiny of environmental practices in the tech industry. However, without independent verification from other reputable outlets, the lack of supporting detail raises concerns. The report lacks specific factual anchors, such as names, institutions, and dates, which are essential for verifying the claims. The language and tone appear consistent with typical corporate or official language, and there is no excessive or off-topic detail unrelated to the claim. Given the plausibility of the claims but the lack of supporting evidence, the score is moderate.
Overall assessment
Verdict (FAIL, OPEN, PASS): REVIEW
Confidence (LOW, MEDIUM, HIGH): MEDIUM
Summary:
The article raises concerns regarding freshness, originality, and source independence. The lack of a specific publication date for the Bloomberg report and the reliance on a niche publication with limited reach contribute to these concerns. The paywall issue further complicates the verification process. Given these factors, a REVIEW verdict is recommended, with a medium level of confidence in the assessment.