Will OpenAI's valuation hit (LOW) $600B by December 31?

Prediction markets put the probability at 8%: Will OpenAI's valuation hit (LOW) $600B by December 31. Currently, markets see this as unlikely (8% YES). The $600 billion is not a forecast – it is a contractual obligation.

What’s Happening

As of early June 2026, OpenAI’s valuation hit (low) $600B by December 31 is trading at just 8% on the market, a stark contrast to the company’s headline-grabbing $852B valuation from its latest funding round. That round, announced on June 4, 2026, raised $122B in new equity, yet the market’s skepticism stems from a structural liquidity crunch rather than growth concerns. OpenAI has signed take-or-pay commitments with multiple cloud providers, creating a contractual obligation for roughly $600B in scheduled outflows over the next 60 months, against only $130B in available liquidity including a $4.7B revolving credit facility. With run-rate revenue plateauing at $24B annually, the implied funding gap is approximately $350B, making a sustained $600B+ valuation dependent on either massive revenue acceleration or additional capital injections before year-end [Tech-insider, Jun 04].

The low probability also reflects a broader competitive repricing in the AI sector. On May 26, 2026, Anthropic reported annualized revenue of $43B for April, up from $9B at the end of 2025, and its valuation has surged to $900B — overtaking OpenAI’s $852B mark. Polymarket data from that same date showed a 96% implied probability that Anthropic’s valuation would exceed OpenAI’s at some point in 2026, and a 75.5% probability that OpenAI lists publicly before Anthropic. These numbers are not contradictory; they indicate that investors are pricing OpenAI’s equity based on its ability to convert contractual obligations into actual compute revenue, while Anthropic’s higher revenue base gives it more flexibility. The $600B threshold is thus viewed less as a growth milestone and more as a floor that could be breached if OpenAI’s cash burn outpaces its ability to renegotiate cloud capacity deals [FinanceFeeds, May 26].

Looking ahead, the key catalyst for repricing this contract would be a settlement-grade datapoint — such as a new funding round at a lower valuation, a major cloud contract renegotiation, or a public filing that reveals actual cash reserves. Notably, the lower-band contracts for Anthropic’s valuation, including the $600B, $700B, and $800B thresholds, are trading in a tight 10.5% to 12.5% range as of June 17, 2026, suggesting that path dependence and wording risk are suppressing all lower-band pricing in this multi-outcome event. For OpenAI specifically, the December 31 deadline means that any re-rating would likely begin with a single authoritative data point — such as a quarterly revenue disclosure or a debt facility announcement — rather than gradual drift. Until then, the 8% probability reflects a market that sees the $600B valuation as a contractual floor that is currently unsupported by the company’s disclosed liquidity position [Cryptoslate, Jun 17].

Traded on Polymarket — $50K Volume

Lower-volume market on Polymarket ($50K). Wider spreads expected — enter with limit orders and be aware of slippage risk. Currently 8c YES.