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Cursor (Anysphere)

high confidence · updated 2026-08-17

AI coding editor developed by Anysphere. Called 'fastest growing startup ever'; reached $10B valuation early 2025; $900M raise at ~$9B in June 2025.

Cursor is an AI-native code editor developed by Anysphere, Inc. The product began as a model-agnostic editor with agent capabilities and, by mid-2026, also shipped Anysphere's own coding models. As of early-to-mid 2025 it was treated by industry observers as among the most successful vertical AI applications, and Bloomberg described Anysphere as the "fastest growing startup ever" (June 5, 2025). Cursor is frequently compared with Windsurf, OpenAI's Codex, Anthropic's Claude Code, and Cognition's Devin.

Overview

  • Company: Anysphere, Inc. (anysphere.inc)
  • Product: Cursor — AI code editor with agent capabilities
  • CEO: Michael Truell
  • Founded: 2022
  • Model support: model-agnostic; supports Claude, GPT-5.x, Gemini, DeepSeek, and open-weight models

Snapshot

Valuation

DateValuationRound / EventSource
2026-04-24~$60B (option)SpaceX option to acquire (reported)theinformation.com
2025-06-05~$9B (implied)$900M raise(wiki)
2025-05-07~$10Breaffirmed(wiki)
2025-03-07~$10B(reported)(wiki)

Revenue (as reported)

DateAmountNotesSource
2026-03$2.7B ARR~14× year over yeartheinformation.com
FY (most recent)$770M revenue / ~$900M lossPer documents reviewed by The Informationsame

Users

Power-user base spans major tech companies, with enterprise rollout through 2025–2026.

Products

Cursor is an AI code editor that supports multiple underlying models (Claude, GPT-5.x, Gemini, DeepSeek, and open-weight models). Product features added through 2025 include Max Mode (unlimited model usage across all Cursor-supported models), Background Agents (long-running agentic capabilities), and a simplified pricing structure introduced in the May 10, 2025 changelog.

In January 2026 Cursor moved its coding agent into production, described in "How Cursor Shipped its Coding Agent to Production" (January 26, 2026) as a shift from an editor augmentation to a first-class autonomous coding agent.

On June 29, 2026, Anysphere launched Cursor for iOS in public beta, letting developers launch always-on coding agents in the cloud or control agents running on their computers from an iPhone or iPad (Source: cursor.com; techcrunch.com).

Beyond coding, Cursor is developing a general-purpose AI agent, internally called Sand, to compete with Anthropic's Claude Cowork by handling email, texts, and spreadsheets; the project became public on July 9, 2026, with internal employee rollout begun in late June and no confirmed public release date (Source: theinformation.com; cryptobriefing.com).

Composer 2.5

On May 18, 2026 Cursor shipped Composer 2.5, a coding model built on the open-source Kimi K2.5 checkpoint from Moonshot and trained on 25× more synthetic tasks than its predecessor. Reported benchmark results:

BenchmarkComposer 2.5Notes
SWE-Bench Multilingual79.8%Matches Opus 4.7 and GPT-5.5
CursorBench v3.163.2%Matches frontier closed-weight peers

Composer 2.5 is priced at $0.50 per million input tokens and $2.50 per million output tokens, below Anthropic and OpenAI frontier-model pricing. Cursor is simultaneously training a larger successor from scratch with SpaceX and xAI on the Colossus-2 cluster using roughly 1 million H100 equivalents. The release moves Cursor from a model-agnostic editor toward a hybrid editor and frontier coding-model developer, competing with Claude Code (Anthropic) and Codex (OpenAI) at lower per-token economics. (Source: the-decoder.com) See AI Coding Agents, Distillation, Moonshot AI.

Cursor released Cursor Router on July 22, 2026, a model-selection layer trained on more than 600,000 live requests. The company said online A/B tests showed it "delivered frontier-quality performance at 60% savings," reporting per-commit costs of $4.63 in Balance mode against $7.34 for routing everything to Opus 4.8 and $12.69 for Fable 5. It is limited to Teams and Enterprise accounts (Source: cursor.com).

Funding and valuation

The Information reported a ~$10B valuation in "The Math Behind a $10 Billion Valuation For Cursor" (March 7, 2025), reaffirmed May 7, 2025. In June 2025 Anysphere raised $900M, implying a valuation of roughly $9B; Bloomberg reported the round under the headline "Anysphere, Hailed as Fastest Growing Startup Ever, Raises $900 Million" (June 5, 2025).

The Information later reported Cursor revenue figures of $2.7B ARR as of March 2026 (about 14× year over year), and, per documents it reviewed, $770M revenue against a roughly $900M loss in the most recent fiscal year (Source: theinformation.com).

Acquisition interest and the SpaceX agreement

In April 2025 OpenAI reportedly considered acquiring Cursor but "opted for the fast-growing Windsurf" (TechCrunch, April 22, 2025). OpenAI's Windsurf deal subsequently collapsed (Source: Raw Sources/Windsurf Acquisition Saga 2025.md).

In April 2026, multiple parties were reported to be in or exploring acquisition talks with Cursor. The Information reported that Microsoft was examining a Cursor acquisition (Source: theinformation.com), and Reuters reported that xAI and Mistral were separately in talks (Source: reuters.com). Reports from April 22–24, 2026 also described SpaceX holding an option to acquire Cursor at a reported $60B price tag; Stratechery's April 24, 2026 analysis framed this option as the basis for a Musk-led "SpaceXAI" consolidation alongside xAI and Twitter/X (Source: theinformation.com; stratechery.com). The same reporting cited Anthropic compute costs as a factor in the SpaceX deal, noting Cursor's exposure to Anthropic API pricing (including the Opus 4.7 35% token tax, see Claude Opus 4.7) as a recurring strategic vulnerability.

On April 25, 2026, SpaceX struck a $60B call-option agreement with Cursor: post-IPO stock with a $10B breakup fee, ahead of SpaceX's confidentially-filed $1.75T June IPO. The agreement gives SpaceX optional access to a frontier-AI coding-tools platform without acquiring it outright, an unusual structure for a private-company deal of this scale. (Source: gettheleverage.com)

By July 2026, Wall Street Journal reporting described Cursor as owned by SpaceX; the same report noted Cursor ran a 75% discount for startups through July 5, 2026 amid a broader contest in which OpenAI, Anthropic, and Google offered startups computing credits in some cases exceeding $3 million (Source: wsj.com). A regulatory filing showed SpaceX completed the $60 billion acquisition effective August 14, 2026, two months after formally announcing it had agreed to acquire the company (Source: bloomberg.com). The completion resolves the April call-option structure into an outright acquisition; the reporting does not state when the option was exercised. Cursor confirmed the close in a company blog post, describing it as the end of a process that began with the April 2026 partnership between Cursor and SpaceXAI, citing access to SpaceX's GPU fleet as the rationale and pointing to Grok 4.6 as an early result of the arrangement; The Information dated the all-stock close to Friday, August 14, 2026 (Source: cursor.com).

The Information reported on July 15, 2026 that Cursor, set to be acquired by SpaceX for $60 billion later in 2026, has been mapping out a major transformation, which CEO Michael Truell described to staff in a companywide communication (Source: theinformation.com).

Competitive position

  • vs. Windsurf: Both are AI-native code editors. Windsurf was absorbed by Google and Cognition in July 2025, while Cursor remained independent (Source: Raw Sources/Windsurf Acquisition Saga 2025.md).
  • vs. Claude Code: Anthropic's official coding CLI; competes on agentic coding but targets different workflows.
  • vs. GitHub Copilot: Microsoft holds an incumbent advantage in IDE install base and OpenAI access; Cursor is viewed favorably among power users.
  • vs. Codex: OpenAI's integrated coding environment (Codex app for macOS, February 2026).
  • vs. Cognition Devin + Windsurf: Cognition inherited Windsurf and is a direct Cursor competitor.

Observers have described Cursor as a demonstration that vertical AI application companies can reach frontier-lab-scale valuations without training their own foundation models, while noting that pricing experiments such as Max Mode affect frontier-lab API revenue composition, and that Cursor resisted OpenAI's acquisition interest and remained independent.

Litigation and regulation

On April 29, 2026 the U.S. House Committee on China and the House Committee on Homeland Security sent a joint letter to Anysphere requesting information about Cursor's use of Chinese AI models, paired with a parallel letter to Airbnb, as part of an investigation into a Chinese campaign to "accelerate its AI capabilities by exploiting American innovation." The probe cited "serious concerns about the national security and data-security implications" for U.S. customers. Cursor's support for Moonshot (Kimi) and DeepSeek models, and its May 18 Composer 2.5 release built on the Kimi K2.5 checkpoint, placed it within the probe's scope.

Airbnb CEO Brian Chesky, responding to the parallel Airbnb probe on May 20, 2026, defended open-weight Chinese model use generally, stating "An open-source model does not have access to data. It doesn't work that way." Cursor's specific response is not publicly recorded as of May 22, 2026. (Sources: bloomberg.com; bloomberg.com) See Alibaba / Qwen Team, Open-Source AI / Open-Weight Models, China and the US Are Running Different AI Races.

Agentic failure incident

The founder of car-rental platform PocketOS reported on April 27, 2026 that a Cursor agent running Claude Opus 4.6 deleted a production database while operating in what was meant to be a staging environment. The incident has been cited in critiques by Gergely Orosz and Grady Booch of Dario Amodei's claims that AI tools could replace human system architects. (Source: x.com) See AI Coding Agents.

Relationships

Sources

  • TechCrunch / Why OpenAI wanted Cursor but opted for Windsurf (2025-04-22)
  • The Information / $10B valuation math (2025-03-07, 2025-05-07)
  • Bloomberg / $900M raise (2025-06-05)
  • Cursor Changelog / May 10 update (2025-05-10)
  • How Cursor Shipped its Coding Agent to Production (2026-01-26)
  • The Information / Cursor market dynamics (2025-03-28)