OpenRouter operates an API marketplace through which developers access and route requests across AI models from multiple providers. Its usage rankings are frequently cited in industry coverage as a signal of real-world model adoption; Meituan's LongCat-2.0, for example, served production traffic on the platform under the alias "Owl Alpha" before its open-source release and led the platform's usage rankings (Source: venturebeat.com).
The Information reported on July 17, 2026 that OpenRouter was in discussions about a potential sale to a larger technology company at a multiple of the $1.3 billion valuation set in its May 2026 CapitalG-led Series B. The platform spans more than 400 models, roughly 8 million users, and about 100 trillion tokens per month (Source: theinformation.com). On July 23, 2026 the Wall Street Journal reported that the prospective acquirer is Stripe, in talks to buy OpenRouter for roughly $10 billion; Stripe already handles OpenRouter's payments, and the deal would move it into the routing infrastructure that more than five million developers use to access hundreds of models (Source: finance.yahoo.com; pymnts.com). A report published July 29, 2026 stated that a purchase near $10 billion would value the three-year-old company at about 70 times its recent annualized revenue, according to a person with knowledge of its financials; the body of that report was not retrievable (Source: theinformation.com).
The talks became exclusive in August. A report of August 6, 2026 stated that Stripe had entered exclusive talks to buy OpenRouter in a cash-and-stock deal valuing the marketplace at close to $10 billion, and described the New York-based company as most recently valued at $1.3 billion. Only the publisher's abstract is retrievable, so no terms beyond the valuation and the cash-and-stock structure are established here, and the talks are exclusive rather than concluded (Source: theinformation.com).
Bloomberg reported on August 16, 2026 that Stripe had finalized an agreement to acquire OpenRouter for more than $7 billion, citing people familiar with the matter (Source: bloomberg.com). The reported price is below the roughly $10 billion figure carried in the July and early-August accounts, and no source reconciles the difference. As of August 17, 2026 neither company had confirmed the agreement, and a Stripe spokesperson said the company does not comment on rumors or speculation; the same report described OpenRouter's May 2026 raise as a $113 million Series B at a reported $1.3 billion valuation from investors including Sequoia, Andreessen Horowitz, Menlo Ventures and Alphabet's CapitalG (Source: techcrunch.com).
Stripe told investors in a letter dated August 19, 2026 that it had agreed to acquire OpenRouter, describing it as its largest acquisition to date; the letter itself states no price. Two accounts published that day gave differing figures: more than $8 billion, mostly in stock, per Axios, and $7.5 billion per a source cited by the New York Times, of which $1.5 billion would go to OpenRouter's founders and $6 billion to its investors. Neither matches the other, the more than $7 billion reported on August 16, or the roughly $10 billion carried in July and early-August accounts, and no source reconciles them (Source: axios.com; nytimes.com).
Stripe published its own announcement of the deal on August 19, 2026. It states that OpenRouter's platform routes and optimizes token usage across more than 400 models from more than 80 providers, and that the service is already used by NVIDIA, Zoom and Lovable. Patrick Collison said that "tokens are the central currency for companies building with AI" and that the combined companies would help businesses "maximize profitability by routing their requests intelligently and spending their tokens efficiently." Alex Atallah, OpenRouter's cofounder and chief executive, said "intelligence will be multi-model: no single model will be optimal for every task, and developers need a neutral layer to orchestrate and manage them all." The announcement states no price, consistent with the investor letter of the same date (Source: stripe.com).
Two further figures appeared in the following week without resolving the spread: an August 25, 2026 account gave more than $8 billion, and a TechCrunch account of August 24 gave $7 billion (Source: axios.com).
Model composition and competitors
The mix of models actually routed through OpenRouter differs from the mix of models that dominate direct API revenue. As of the August 25, 2026 account, the five most popular models on the platform were all open weight or open source; OpenAI and Google each had one model in the top ten, and Anthropic had none. OpenRouter had 8 million users and 400 models available as of May 2026, per Bloomberg. Meta is separately developing a competing router called Switchboard, which it may use to lower its own AI costs (Source: axios.com).
Nathan Lambert, writing in September 2026, described OpenRouter as "primarily known for trying different open-weight models" and used its usage data, published for top models since January 1, 2025, as one of the few direct measures of open-model adoption by country of origin. He reported open-model volume growing from about 1 trillion tokens in a week of September 2025 to about 80 trillion tokens per week, and the Chinese models' share of that open-model usage rising from about 70% to over 80% (The current balance of power in open models (Nathan Lambert, September 2026)). His share is measured against open-model tokens only; the 46.4% Chinese share reported in July 2026 is a share of all routed tokens. His weekly open-model figure is also larger than the roughly 100 trillion tokens per month of total volume The Information reported for July 2026; the sources do not reconcile the two (see Usage below).
Anonymous previews are part of the platform's function and carry their own data terms. The unbranded coding model Ox Alpha, previewed on OpenRouter from August 20, 2026 and unclaimed by any company as of August 23, showed infrastructure fingerprints matching GLM-5.3 on six of nine probes; Z.ai had previewed anonymously before, running GLM-5 as Pony Alpha. OpenRouter's model page states that prompts and completions are retained by the provider and not used for training, while the site's broader terms for anonymous previews extend to training, evaluation and improvement (Source: siliconangle.com).
Misuse
The operator of a criminal campaign against online retailers documented by Gambit Security in September 2026 used OpenRouter for AI model access, according to Gambit's report. A capture of the account balance on August 25, 2026 recorded $7,005.71 spent over four weeks; the operator then ran for three more weeks at about twice the daily volume, and Gambit puts the full cost at likely $12,000 to $18,000. The report states that the Strix scanning harness ran through OpenRouter on GLM 5.2 and later DeepSeek v4 Pro (Source: gambit.security). See Autonomous cyber-agents.
Snapshot
Valuation
| Date | Value | Notes | Source |
|---|---|---|---|
| 2026-08-19 | >$8B mostly in stock (Axios); $7.5B split $1.5B to founders / $6B to investors (source cited by the New York Times) | Stripe's investor letter of the same date states that the acquisition was agreed but gives no price. The two reported figures differ from each other, from the >$7B of August 16, and from the ~$10B of July and early August; no source reconciles them | (Source: axios.com; nytimes.com) |
| 2026-08-16 | >$7B (agreement finalized, per Bloomberg) | Unconfirmed by either company; below the ~$10B carried in July and early-August reporting, unreconciled | (Source: bloomberg.com) |
| 2026-08-06 | ~$10B (exclusive talks, cash and stock) | Stripe reported in exclusive talks; publisher abstract only | (Source: theinformation.com) |
| 2026-07-29 | ~$10B implies ~70× recent annualized revenue | Per a person with knowledge of OpenRouter's financials, cited by The Information; the report's body was not retrievable | (Source: theinformation.com) |
| 2026-07-23 | ~$10B (acquisition talks) | Stripe reported in talks to acquire OpenRouter | (Source: finance.yahoo.com) |
| 2026-07 | Takeover interest at a multiple of $1.3B | Discussions with a larger technology company reported | (Source: theinformation.com) |
| 2026-05 | $1.3B (Series B, CapitalG-led) | (Source: theinformation.com) |
Revenue
| Date | Metric | Value | Source |
|---|---|---|---|
| 2026-04 | Annualized revenue | $50M, up five-fold since October 2025 | (Source: wsj.com) |
Usage
| Date | Metric | Value | Source |
|---|---|---|---|
| 2026-09-21 | Open-model token volume and Chinese share | ~80T open-model tokens per week (from ~1T in a week of September 2025); Chinese models over 80% of open-model usage (from ~70%), per Nathan Lambert | (The current balance of power in open models (Nathan Lambert, September 2026)) |
| 2026-09-18 | OpenAI vs Anthropic spend | OpenRouter said its users spent more on OpenAI models than on Anthropic models in the previous week, the first time OpenAI had led on that measure in more than two and a half years, following the September 3, 2026 release of GPT-6 Astra | (Source: reuters.com) |
| 2026-07-23 | Chinese-model token share | 46.4% of routed tokens, per reporting on the proposed U.S. ban on Chinese AI models | (Source: tomshardware.com) |
| 2026-07-18 | Top models by weekly token usage | Chinese open-weight models from Tencent, Xiaomi, DeepSeek, MiniMax, and Z.ai held the top five spots | (Source: axios.com) |
| 2026-07 | Models / users / token volume | 400+ models; ~8M users; ~100T tokens/month | (Source: theinformation.com) |
Relationships
- related: Inference Economics and Token Pricing — model-routing marketplaces sit in the serving layer whose margins the model price war affects
- related: Open-Source AI / Open-Weight Models — platform usage rankings serve as an adoption metric for open-weight models
- related: The current balance of power in open models (Nathan Lambert, September 2026) — cites OpenRouter's open-model volume and Chinese share in a congressional briefing
- related: Stripe — reported acquirer; agreement reported finalized August 16, 2026 at more than $7 billion, unconfirmed by either company; Stripe stated in an August 19, 2026 investor letter that the acquisition had been agreed, without giving a price