On May 13, 2026, OpenAI changed its developer free tier. The company shut down legacy open access to gpt-4o-mini through the API. It replaced that access with a one-time $15 platform credit for new accounts. Existing free tier users lost their monthly token allowance. The revised terms appeared on OpenAI’s developer pricing page. Free-tier developers now face a hard 50 requests per minute cap. They also get a 2 million token monthly allowance only while the credit lasts. This is the biggest developer free tier shift since the 2025 API pricing overhaul. The consumer ChatGPT free tier was not part of this change.
Who felt the change first? Independent developers, startups, and hobbyists that relied on free API calls for prototypes. The new $15 credit is not a recurring allowance. It is a trial credit tied to a 30-day window. Once the credit is spent, the account cannot make further API calls without billing. OpenAI’s announcement said this was designed to reduce abuse and signal real usage intent. But developers who built small tools around the old free tier found their automations dead by mid-May. The move hit developers who depended on free API tiers hardest. Several open source demo projects reported broken calls within hours.
The timing was not accidental. Google and Anthropic both tightened free API access in the first half of 2026. Google cut its AI Studio free tier in June, and Anthropic replaced flat-rate evaluation with credits on June 15. OpenAI’s May change landed first, putting pressure on smaller providers. Industry data from Stanford HAI showed that free API tier usage grew 38 percent in 2025. Vendors now view that usage as a cost problem. The AI pricing changes in June 2026 followed the same logic. OpenAI wanted to convert free developers into paid users faster.
This report verifies the actual numbers behind the May 13 change. We reviewed the OpenAI pricing page, the developer announcement, and the updated rate limit documentation. We also compared the new terms against Google Gemini and Anthropic Claude free tiers. The findings are plain. The legacy OpenAI free tier is gone. The new tier is a paid trial with a free label. For some developers, that is acceptable. For others, it is a reason to switch. The comparative tables below show exactly what changed.
How Do the Top Options Compare?
| Free Tier | Monthly Token Cap | Rate Limit | Trial Credit | Main Change |
|---|---|---|---|---|
| OpenAI API Legacy Free | Unlimited gpt-4o-mini | No published RPM cap | $0 | Access ended May 13, 2026 |
| OpenAI API Current Free | 2 million tokens | 50 RPM | $15 once | Credit replaces legacy free tier |
| OpenAI ChatGPT Free | Consumer use only | Message limits | $0 | No API access |
| Google Gemini API Free | 1.5 billion tokens | 60 RPM | $0 | Larger allowance but ads added June 2026 |
| Anthropic Claude API Free | Evaluation only | 5 requests per day | $10 once | Metered console credit pool |
Legacy access details were pulled from OpenAI’s pricing page on May 13, 2026 and from vendor documentation. Limits vary by model and region. Google and Anthropic figures reflect mid-2026 policy updates.
1. OpenAI API Free Tier (Legacy) , Developers who built on free gpt-4o-mini before May 2026
The legacy OpenAI API free tier was generous by 2025 standards. Developers could call gpt-4o-mini without a credit card. Many used it for chat wrappers, small agents, and coding assistants. No published monthly token cap existed. The actual limits were soft, enforced by dynamic rate limiting and account-level flags. That changed on May 13, 2026. OpenAI removed the old free access from the API dashboard. The move followed months of capacity pressure from free tier abuse. The AI API free tier limits report documented similar shifts across providers.
For legacy users, the pain was immediate. Scripts that ran nightly free API calls returned 429 errors. Accounts that had not added billing could no longer reach gpt-4o-mini. OpenAI did not grandfather legacy free tier accounts. The company offered affected developers a one-time $15 credit, but only if they activated billing. Many open source maintainers said that was not acceptable. The change forced a choice: add a payment method or move to another free tier. The developer response to free tier cuts showed frustration across GitHub repositories.
Key strengths:
- ✅ Free access to gpt-4o-mini for small projects without billing setup
- ✅ No hard monthly token cap announced for most uses
- ✅ Let developers test chat and agentic code paths at no cost
- ❌ Ended on May 13, 2026 without grandfathering for production
- ❌ Rate limits became unpredictable during high load
- ❌ No access to flagship models like GPT-5
Who it’s for: Legacy developers who used the old free tier and now must migrate.
2. OpenAI API Free Tier (Current) , New developers who need a short paid trial before committing
On May 13, 2026, the current OpenAI API free tier launched. New accounts received a $15 one-time credit. The credit expires 30 days after signup. After the credit is spent, the account cannot make API calls without a paid plan. The free tier includes gpt-4o-mini and text-embedding-3-small. The rate limit is hard set at 50 requests per minute. A 2 million token monthly allowance applies while the credit remains. The numbers were published on OpenAI’s developer platform.
This is not a free tier in the old sense. It is a paid trial with a handout. OpenAI calls it a free tier because the $15 credit covers initial testing. But developers who think they can run a production tool for free will hit the wall quickly. The 2 million token cap sounds large. At 50 RPM, a developer can consume that in less than a day if requests are token heavy. The new limits are designed to convert free users. The ChatGPT Codex free tier had a similar short trial structure.
Key strengths:
- ✅ Clear $15 trial credit covers initial model exploration
- ✅ Hard 50 RPM limit prevents surprise bills
- ✅ Access to gpt-4o-mini and some smaller models
- ❌ Credit expires after 30 days, not a long term free tier
- ❌ 2 million token monthly cap disappears after credit is spent
- ❌ No production use under the free tier
Who it’s for: New developers evaluating OpenAI API for the first time.
3. OpenAI ChatGPT Free Tier , Consumers and hobbyists who use chat, not API
OpenAI kept the consumer ChatGPT free tier separate from the API change. On May 13, 2026, the ChatGPT app and web experience stayed open to users without billing. The consumer free tier still included limited access to GPT-5 but with message caps and ad placements. The API free tier change did not affect chat users directly. But developers who used ChatGPT for ad hoc coding lost no API access, because they never had it.
The distinction matters. Many news reports blurred the two tiers. The May 13 change was for API accounts, not ChatGPT accounts. ChatGPT free users saw no shutdown. However, the consumer free tier had its own changes in June 2026. OpenAI introduced more aggressive ad insertion and lower message limits on the free plan. Those changes were separate. The ChatGPT pricing changes report covered the consumer side.
Key strengths:
- ✅ Stable consumer access to ChatGPT with no credit card
- ✅ No impact from May 13 API free tier shutdown
- ✅ Includes access to some GPT-5 features with ads in 2026
- ❌ Cannot be used for production API work
- ❌ Usage caps and ad load changed separately on June 3, 2026
- ❌ No token metering or developer transparency
Who it’s for: Non-technical users who want chat assistance without API integration.
4. Google Gemini API Free Tier , Developers who want a larger free token pool after OpenAI cut
Google became the default fallback for many developers after OpenAI’s cut. The Gemini API free tier in 2026 still offered a larger token allowance than OpenAI. Google’s AI developer page listed 1.5 billion monthly tokens for Gemini 3 Flash. The free tier also carried a 60 requests per minute cap. That is higher than OpenAI’s 50 RPM. Developers who migrated from OpenAI found the Gemini free tier more generous for small projects.
But Google also tightened access in June 2026. The free tier began showing ads in AI Studio responses. Google moved newer Gemini Pro models behind the paid tier. The Gemini free tier cuts report detailed those limits. Even with those cuts, the free allowance remained larger than OpenAI’s trial credit. For token-hungry prototyping, Google was the clearer no-cost winner.
Key strengths:
- ✅ Much larger free token cap than OpenAI current tier
- ✅ 60 RPM is higher than OpenAI’s 50 RPM
- ✅ Open access to Gemini 3 Flash and Flash-Lite
- ❌ Google inserted ads into free AI Studio responses in June 2026
- ❌ Free tier excludes newer Pro models, which became paid
- ❌ Rate limits still tighten during high demand
Who it’s for: Developers who want the largest no-cost token allowance.
5. Anthropic Claude API Free Tier , Developers evaluating Claude models without monthly commitment
Anthropic never offered a traditional open free API tier like early OpenAI. Its free tier was an evaluation channel. On June 15, 2026, Anthropic replaced that flat-rate evaluation with a console credit pool. The new policy gave new developers a $10 credit and 5 requests per day. The change was announced on Anthropic’s site. The daily request cap made automated testing slow but predictable.
Compared to OpenAI, Anthropic’s approach was more transparent about limits. The credit pool had a clear expiration date. The 5 requests per day cap eliminated runaway consumption. But the cap frustrated developers who wanted to test long agent loops. The Anthropic free tier policy report showed that some users moved to paid Claude plans faster. For pure evaluation, the Claude credit pool worked. For free production, it did not.
Key strengths:
- ✅ Console credit approach gives a small paid trial for Claude models
- ✅ Transparent daily request limit prevents runaway consumption
- ✅ Evaluation access to Claude Opus 4.8 on a metered basis
- ❌ Free tier no longer supports long-running agent tasks
- ❌ 5 requests per day make real testing slow
- ❌ Credit expires after 30 days
Who it’s for: Developers who need to compare Claude quality before paying.
Frequently Asked Questions
What exactly changed on May 13, 2026?
OpenAI ended legacy free API access to gpt-4o-mini and replaced it with a $15 one-time credit for new developer accounts. The new tier introduced a 50 requests per minute cap and a 2 million token monthly allowance only while the credit lasts. Consumer ChatGPT free access did not change.
Did OpenAI eliminate the free tier entirely?
No. OpenAI kept a limited free tier for API testing, but it is now a short trial credit rather than an ongoing no-cost allowance. Once the $15 credit is spent, API calls require a paid plan.
Who is affected by the new API free tier?
New developer accounts and legacy free tier users are affected. Independent developers, startups, and hobbyists who relied on free gpt-4o-mini calls for prototypes lost access unless they added billing. Enterprise paid accounts were not affected.
How much free credit do new developers get?
New developer accounts receive a $15 one-time credit. The credit expires 30 days after signup. The 2 million token monthly allowance applies only while the credit is active.
Does the ChatGPT free tier still exist?
Yes. The consumer ChatGPT free tier remained open after May 13, 2026. It includes message caps and ads on the free plan. Developers cannot use ChatGPT free accounts for API production.
How does OpenAI compare to Google and Anthropic free tiers?
Google Gemini offered a larger 1.5 billion monthly token allowance on Gemini 3 Flash and 60 requests per minute. Anthropic replaced flat-rate free evaluation with a $10 console credit and 5 requests per day. OpenAI’s $15 trial credit is smaller for ongoing no-cost work.
What Should You Remember?
- May 13, 2026: OpenAI ended legacy API free access and replaced it with a $15 trial credit.
- 2 million tokens: The new monthly cap applies to gpt-4o-mini only after credit is spent.
- 50 RPM: New hard rate limit replaced the old unpriced tier.
- ChatGPT free tier: Consumer chat access remained separate and unchanged on that date.
- Google advantage: Gemini 3 Flash still offers a larger no-cost allowance.
- Anthropic credit pool: Claude evaluation access shifted to metered console credits on June 15.
- Migration urgency: Legacy free tier users had to move to paid plans or credit by June 12, 2026.
Free AI News is an independent editorial publication. Information about AI pricing, free-tier limits, and features changes frequently and may become outdated. Always verify current details through the vendor’s official pages. Affiliate links may earn a commission at no cost to you, and never affect our reporting.
