OpenAI vs Anthropic: The AI Coding Price War That Benefits You
Sam Altman is offering free Codex. Anthropic just boosted Claude Code limits by 50%. Here is exactly what happened, why, and how to take advantage of both.
- OpenAI and Anthropic are in an open price war over developers, and you are the one who benefits. On May 14, Sam Altman announced that any company switching from Claude to OpenAI Codex would get two months of free enterprise access. Less than an hour later, Anthropic responded by increasing Claude Code weekly limits by 50 percent for all paid users. This is not a coincidence. It is two companies spending billions to win your loyalty while developers get free compute.
- Here is the full timeline of how this started, what each company is offering, and how to take advantage of both sides right now.
How the Price War Started
The trigger was an Anthropic pricing change. In early May, Anthropic began charging separately for third party agent tool calls. This usage was previously included in Claude subscription plans. This meant developers using Claude Code through tools like Cursor, Cline, or other third party agents suddenly faced extra charges on top of their existing subscription.
The developer community reacted badly. Twitter filled with complaints about what many saw as a reduction in service value. Developers who had built workflows around Claude's generous limits felt blindsided.
OpenAI saw the backlash and moved fast. Sam Altman posted on X: Codex is the best AI coding product and we want to make it easy to try. He announced that companies switching from Claude would receive two months of free enterprise Codex access if they signed up within 30 days. OpenAI had already removed the seat fee for Codex's business tier the previous month, making the offer even more attractive.
Anthropic responded within the hour, announcing a 50 percent increase in Claude Code weekly limits for all Pro, Max, Team, and Enterprise users, effective immediately through July 13.
Source: Verified from posts on X by Sam Altman and Anthropic's Claude developer account, May 14, 2026.
The SpaceX Deal That Made It Possible
Anthropic's ability to match OpenAI's generosity comes from a deal announced on May 6 at the Code with Claude developer conference in San Francisco. Anthropic signed an agreement with SpaceX to use the entire computing capacity of the Colossus 1 data center in Memphis, Tennessee.
The numbers are staggering: over 220,000 NVIDIA GPUs including H100, H200, and next generation GB200 accelerators, delivering more than 300 megawatts of compute power. This is one of the largest bilateral compute deals between an infrastructure provider and an AI lab.
The backstory makes it even more remarkable. Elon Musk had previously called Anthropic misanthropic and evil. But after spending time with senior Anthropic staff, he reversed course, posting: Everyone I met was highly competent and cared a great deal about doing the right thing. No one set off my evil detector.
The deal was possible because SpaceXAI (the merged SpaceX and xAI entity) had already moved its own model training to the newer Colossus 2 facility. Rather than let Colossus 1 sit underutilised at 11 percent GPU utilisation as reported by The Information, leasing it to Anthropic generates significant revenue ahead of SpaceX's planned IPO.
The immediate results for Claude users: five hour rate limits doubled for all paid tiers, peak hours restrictions removed for Pro and Max users, and API rate limits for Claude Opus models considerably increased.
Source: Verified from Anthropic press release, SpaceXAI blog post, CNBC, Tom's Hardware, and Axios, May 6, 2026.
What Each Company Is Offering Right Now
Here is exactly what you can get from each side as of May 15, 2026.
OpenAI Codex: Two months of free enterprise Codex access for companies switching from Claude. You must sign up within 30 days (by mid June 2026). Apply through OpenAI's website or partner channels like Stripe Atlas. Codex is included in ChatGPT Plus at $20 per month, the new Pro tier at $100 per month (with 5x usage), and Pro at $200 per month (with 20x usage). Codex currently has 3 million weekly users.
Anthropic Claude Code: 50 percent increase in weekly limits for all Pro, Max, Team, and Enterprise users through July 13. Claude Code is available on Pro at $20 per month, Max 5x at $100 per month, and Max 20x at $200 per month. The SpaceX deal has already doubled five hour rate limits and removed peak hour restrictions. Claude Code's run rate revenue exceeded $2.5 billion in February, growing over 100 percent since the start of 2026.
The pricing tiers now look remarkably similar across both platforms, which is not a coincidence.
How to Take Advantage of Both
The smart move is not to pick a side. It is to use both offers while they last.
1. If you are currently on Claude Code Pro ($20/mo): You already get 50 percent more weekly limits through July 13 at no extra cost. Keep using it. Separately, sign up for the free Codex enterprise trial to test it alongside Claude Code.
2. If you are on a team or enterprise plan: Apply for OpenAI's two month free Codex offer through their website. Use the trial period to benchmark Codex against Claude Code on your actual codebase. You lose nothing.
3. If you are not on either yet: Start with Claude Code Pro at $20 per month. It currently has the best value at the entry tier with the boosted limits. Simultaneously sign up for ChatGPT Plus at $20 per month, which includes Codex access.
4. If you use Cursor, Copilot, or Windsurf: These tools sit on top of AI models. Cursor uses Claude by default, Copilot uses GPT models, and Windsurf supports multiple providers. The price war means the underlying models are getting cheaper and more available, which benefits you regardless of which IDE you prefer.
The key insight: both companies are subsidising your compute right now to build market share. This will not last forever. Take advantage while you can.
What Happens Next
The competitive dynamic in AI coding tools has shifted from best model wins to subsidy plus workflow control plus ecosystem lock in. Both OpenAI and Anthropic are spending aggressively because the developer market is the most valuable customer segment in AI. Developers who adopt a coding tool tend to stay for years.
OpenAI has the larger war chest and is resetting Codex usage limits every million users until they reach 10 million. Anthropic has the SpaceX compute deal plus partnerships with Amazon, Google, Microsoft, and NVIDIA totalling tens of gigawatts of capacity.
For developers, the practical takeaway is simple: the next two months represent the cheapest AI coding compute you will likely ever see. Use it to ship code, build projects, and evaluate which tool fits your workflow. When the promotions end and pricing normalises, you will know exactly which one is worth paying full price for.
Not sure which AI coding tool fits your workflow? Take our free 60 second AI Match quiz: aitoolsmentor.com/wizard
Source: Pricing verified at chatgpt.com/codex/pricing and claude.ai/pricing, May 2026. Deal details from Anthropic press release, CNBC, TechCrunch, and Yahoo Finance.