Dataset

The Access Gap

A model can reach developers, a paid plan and the consumer app on different days. This page shows where each model can be used, which ordinary plans include it, and the lab source behind every dated claim.

Checked 3 Oct 2026 · 12 launch cases · CSV · JSON

Short answers

Which new models are on the free plan?

Lab by lab, for the 12 launches on this page since 12 Aug 2026. Checked 3 Oct 2026. Each answer links the table cells it comes from.

ChatGPT
GPT-6.1 Sol, GPT-6 Sol and GPT-6 Astra are not on the free plan. From: GPT-6.1 Sol · GPT-6 Sol · GPT-6 Astra
Claude
Claude Sonnet 5.5 is on the free plan. Claude Opus 5.5 and Claude Fable 5.1 are not. Claude Mythos 5.1 is restricted to vetted access. From: Claude Sonnet 5.5 · Claude Opus 5.5 · Claude Fable 5.1 · Claude Mythos 5.1
Gemini
Gemini 3.8 Flash and Gemini 3.7 Flash are not named for free users. Gemini 4 Argon is restricted to vetted access. From: Gemini 4 Argon · Gemini 3.8 Flash · Gemini 3.7 Flash
Grok
Grok 4.6 is on the free plan. Whether free users get Grok 4.7 is not established. From: Grok 4.7 · Grok 4.6

At a glance

Can you use it?

Find the model, then read across: when anyone could first use it, when it reached the lab's own app, and whether the cheapest paid plan and the free plan include it. Select a model or a cell for the full case, its dates and sources.

Key: Launch day = the day it was announced · +1 day = one day later · Yes · no date = available now, arrival date not published · Yes / No · plan = that plan includes it, or explicitly does not · Unlisted = the lab does not name that plan · Unknown = the evidence does not settle it · Credits = pay per use from the first request · Restricted = vetted programmes only.

What we record

One launch. Four access questions.

“Available today” may mean API access. Consumer access and plan economics can arrive on their own clocks. A paid subscriber may be able to select a model only through credits. A restricted sibling can remain outside ordinary plans entirely.

01 First access

First ordinary self-serve access on any named product surface, including developer/API access.

02 In the app

First ordinary access inside the provider’s consumer app, including modes such as Work or Spark.

03 Cheapest paid plan

Whether the provider’s lowest ordinary individual paid tier includes the model in a consumer-app mode without usage credits from the first request.

04 Free plan

Whether the ordinary free tier includes the model in a consumer-app mode.

The launch cases

A date appears only where the lab’s own pages date the access for that audience. Where they don’t, the card says so and no day count is invented.

Google

Gemini 4 Argon

Announced 30 Sept 2026

Argon has no ordinary self-serve path yet. Google is rolling it out to a set of trusted cyber defenders through its Fairwind Program and gathering feedback from early testers. It says Argon will reach developers, enterprises and consumers “as soon as possible”, starting with paid API customers and Google AI Ultra subscribers, and gives no date.

First access Restricted
Trusted access

Fairwind Program / early testers · Trusted cyber defenders; early testers

No ordinary self-serve date. For trusted defenders and its own teams, Google says it is releasing Argon without cyber guardrails. Wider access waits while Google iterates on guardrails using feedback from early testers.

In the app Restricted
Restricted

Gemini consumer products · Ordinary subscribers

Google says consumers get Argon later, starting with Google AI Ultra subscribers, with no date.

Cheapest paid plan Restricted
Restricted

Gemini consumer products · Google AI Plus

Ultra, the top individual plan, is the first consumer tier Google names. Plus is not named.

Free plan Restricted
Restricted

Gemini consumer products · Free

Argon is limited to trusted defenders and early testers; Google names no free-tier path.

Restricted path Fairwind Program Trusted cyber defenders

Google launched Fairwind on 2 Sep as a limited access programme for governments and trusted partners, and says it has more than 650 participating partners.

Google blog

OpenAI

GPT-6.1 Sol

Announced 29 Sept 2026

GPT-6.1 Sol reached the API, ChatGPT Work and Codex on 29 September. OpenAI’s pages disagree on who got it that day: the launch post says all Plus and higher plans, the release notes a rollout starting with Pro. Current ChatGPT pricing includes it on Plus and not on Go or Free.

First access Dated
29 Sept 2026 Day 0

OpenAI API / ChatGPT Work / Codex · API developers; eligible paid ChatGPT plans (Plus and up)

The API changelog released GPT-6.1 Sol on 29 Sep, and ChatGPT Work and Codex access began the same day.

In the app Dated
29 Sept 2026 Day 0

ChatGPT Work · Plus and higher (launch post) or Pro first (release notes)

OpenAI’s pages disagree on day 0. The launch post says it was available that day to all Plus, Pro, Business, Enterprise and Edu users; the release notes describe a rollout starting with Pro and expanding to Plus, Business, Enterprise and Edu. Either way, Work access began on 29 Sep. Work counts as consumer-app access.

Cheapest paid plan Unavailable
Not included

ChatGPT · Go

Go is the lowest ordinary individual paid plan. Current ChatGPT pricing marks GPT-6.1 Sol as unavailable on Go.

Free plan Unavailable
Not included

ChatGPT Work · Free

GPT-6.1 Sol is described as a model for eligible paid plans.

Anthropic

Claude Sonnet 5.5

Announced 28 Sept 2026

Sonnet 5.5 launched across Anthropic’s platforms and cloud partners on day zero. Current Claude pricing includes Sonnet on Pro and Free.

First access Dated
28 Sept 2026 Day 0

Claude products / Claude Platform / cloud partners · Eligible users and developers

Anthropic says Sonnet 5.5 is available on all platforms, including AWS, Google Cloud and Microsoft Azure.

In the app Dated
28 Sept 2026 Day 0

Claude Chat · Claude users

Anthropic says anyone can chat with Sonnet 5.5 on Claude.ai; the launch announcement dates platform availability to 28 Sep.

Cheapest paid plan Dated
28 Sept 2026 Included

Claude Chat · Pro

Claude pricing includes Sonnet on Pro.

Free plan Included now
Included now

Claude Chat · Free

Current Claude pricing includes Sonnet on Free. The first free-tier inclusion date is not established here.

OpenAI

GPT-6 Sol

Announced 22 Sept 2026

Sol reached the API, ChatGPT Work and Codex on 22 September. Work counts as consumer-app access. Go and Free do not include Sol on current ChatGPT pricing.

First access Dated
22 Sept 2026 Day 0

OpenAI API / ChatGPT Work / Codex · Developers; eligible paid subscribers

OpenAI released Sol in the API and introduced it in Work and Codex on the same day.

In the app Dated
22 Sept 2026 Day 0

ChatGPT Work · Plus, Pro, Business, Enterprise and Edu

OpenAI’s launch post made Sol available in ChatGPT Work and Codex for all Plus, Pro, Business, Enterprise and Edu users, and the release notes date that launch to 22 Sep. Work counts as consumer-app access.

Cheapest paid plan Unavailable
Not included

ChatGPT · Go

Go is the lowest ordinary individual paid plan. Current pricing does not include GPT-6 Sol.

Free plan Unavailable
Not included

ChatGPT · Free

Current ChatGPT pricing marks GPT-6 Sol as unavailable on Free.

Anthropic

Claude Opus 5.5

Announced 22 Sept 2026

Opus 5.5 launched on 22 September across Claude for paid consumers, the Claude Platform and cloud partners. Pro includes Opus; Free does not.

First access Dated
22 Sept 2026 Day 0

Claude / Claude Platform / cloud partners · Paid consumers and developers

Anthropic’s 22 Sep announcement says Opus 5.5 is available on all platforms, and its Opus page lists Pro, Max, Team and Enterprise users.

In the app Dated
22 Sept 2026 Day 0

Claude · Pro, Max, Team and Enterprise

Anthropic lists Opus 5.5 for Pro, Max, Team and Enterprise users; its announcement dates availability to 22 Sep.

Cheapest paid plan Dated
22 Sept 2026 Included

Claude · Pro

Current Claude pricing includes Opus on Pro.

Free plan Unavailable
Not included

Claude · Free

Current Claude pricing marks Opus as unavailable on Free.

SpaceXAI

Grok 4.7

Announced 21 Sept 2026

Grok 4.7 was self-serve on Cursor, Grok Build and the API on launch day. grok.com now labels its Expert and Heavy modes Grok 4.7; we found no SpaceXAI announcement and no published date. Expert mode starts at SuperGrok Lite and is not on the Free plan; whether Free’s unnamed Fast mode runs Grok 4.7 is not published.

First access Dated
21 Sept 2026 Day 0

Cursor / Grok Build / Grok API · Developers and users of named coding surfaces

SpaceXAI explicitly listed these as available on launch day.

In the app Included now
Included now

grok.com Expert and Heavy modes · Paid plans (Expert from SuperGrok Lite up)

grok.com now labels its Expert and Heavy modes Grok 4.7. The launch post did not name the chat app, and we found no SpaceXAI announcement of the switch, so no arrival date is published.

Cheapest paid plan Included now
Included now

grok.com Expert mode · SuperGrok Lite

SpaceXAI’s pricing table includes Expert mode from SuperGrok Lite up, and grok.com’s Expert mode now runs Grok 4.7. The pricing table’s model row still names Grok 4.6, so this links two SpaceXAI pages; neither states it alone. No inclusion date is published.

Free plan Unknown
Build is free; chat unknown

Grok Build / Grok chat · Free users

Grok Build offers a free start, but that does not establish Grok 4.7 in the ordinary chat product. On grok.com, Free has Fast mode, which names no model, and the pricing table leaves Expert off Free.

Restricted path Red-team capabilities Select cybersecurity partners

SpaceXAI says select partners receive invite-only access to Grok 4.7 red-team capabilities for defence research.

SpaceXAI announcement

OpenAI

GPT-6 Astra

Announced 3 Sept 2026

Astra reached developer and Work/Codex surfaces first. ChatGPT Go does not include it. Plus has limited Astra access through Work and Codex, while GPT-6 Pro in regular Chat starts on higher tiers.

First access Dated
4 Sept 2026 1 day

OpenAI API / ChatGPT Work / Codex · API developers; Pro, Business Premium, Enterprise

The API changelog dates Astra to 3 Sep, but the launch post says it first reached a limited set of organisations, with API and paid-plan access over the coming days. On 4 Sep OpenAI said Astra was live in the API and in Work and Codex for Pro, Enterprise and Business Premium. That is the dated event used here.

In the app Dated
4 Sept 2026 1 day

ChatGPT Work · Pro, Business Premium, Enterprise

Work is a mode inside ChatGPT and counts as consumer-app access. OpenAI said rollout to Plus and Business might take a few days; Plus now includes Astra in Work and Codex.

Cheapest paid plan Unavailable
Not included

ChatGPT · Go

Go is the lowest ordinary individual paid plan. Current ChatGPT pricing marks GPT-6 Astra as unavailable on Go.

Free plan Unavailable
Not included

ChatGPT · Free

Current ChatGPT pricing marks GPT-6 Astra as unavailable on Free.

Google

Gemini 3.8 Flash

Announced 2 Sept 2026

Google shipped developer and consumer access on launch day for the Pro and Ultra plans named in its announcement. Google AI Plus is the lowest paid individual tier and is not named for 3.8 Flash. Google’s plan page lists 3.6 Flash for free users, and from 9 October Google says users without a plan get Flash-Lite only in the Gemini app.

First access Dated
2 Sept 2026 Day 0

Gemini API / AI Studio / Gemini consumer surfaces · Developers; Google AI Pro and Ultra

Google directed developers and eligible consumer subscribers to use 3.8 Flash on launch day.

In the app Dated
2 Sept 2026 Day 0

Gemini app / Search AI Mode / Sheets · Google AI Pro and Ultra

The launch post explicitly names these consumer surfaces and tiers.

Cheapest paid plan Unlisted
Not named (Pro and Ultra only)

Gemini consumer products · Google AI Plus

Google AI Plus is the lowest paid individual tier. The 3.8 launch post names Pro and Ultra for consumer access.

Free plan Unlisted
Not named

Gemini consumer products · Free

The launch post names Pro and Ultra for consumer access. Google’s plan page lists 3.6 Flash for free users, and from 9 October Google says users without a plan get Flash-Lite only.

Restricted path 3.8 Flash Cyber Trusted defenders through Fairwind

The Cyber variant uses a more permissive safeguard profile and is provided through Google’s Fairwind programme.

Google blog

Anthropic

Claude Fable 5.1

Announced 1 Sept 2026

Fable 5.1 was generally available from launch, but “available” and “included” diverge by plan. Max and premium seats include usage inside plan limits; Pro and standard seats draw from pay-as-you-go credits from the first request.

First access Dated
1 Sept 2026 Day 0

Claude products / API / cloud platforms · Eligible paid users and developers

Anthropic describes Fable 5.1 as generally available and available on all platforms from launch.

In the app Dated
1 Sept 2026 Day 0

Claude web / mobile / desktop / Code · Paid Claude plans

Anthropic’s plan guidance provides Fable access across paid Claude plans, with different billing treatment by tier.

Cheapest paid plan Pay extra
Credits from first use

Claude products · Pro

Pro can use Fable 5.1 through pay-as-you-go credits from the first request. The normal plan allowance does not include those requests.

Free plan Unavailable
Paid plans only

Claude products · Free

Anthropic’s plan guidance limits Fable 5.1 access to paid plans; Free has no listed entitlement.

Anthropic

Claude Mythos 5.1

Announced 1 Sept 2026

Mythos 5.1 has no ordinary self-serve path. Anthropic offers it to vetted cyberdefenders and life scientists through trusted-access programmes, currently to US organisations only; its Cyber Verification Program will add Mythos in the near future. A Claude Enterprise plan on its own gives access only through Claude Security scans, which run on Mythos 5.1.

First access Restricted
Trusted access

Project Glasswing API / Life Sciences Verification Program / Claude Security · Vetted US organisations; a Claude Enterprise plan alone gives Claude Security scans only

No ordinary self-serve date. The API launched for Project Glasswing participants, and the Life Sciences Verification Program is an invite-only beta. Claude Security scans run on Mythos 5.1 for all Enterprise customers, in public beta, without direct access to the model.

In the app Restricted
Restricted

Claude consumer app · Ordinary subscribers

Anthropic limits Mythos 5.1 to trusted-access programmes; ordinary consumer availability is not offered.

Cheapest paid plan Restricted
Restricted

Claude products · Pro

A standard paid subscription does not itself grant Mythos 5.1 access.

Free plan Restricted
Restricted

Claude products · Free

Mythos 5.1 is restricted to vetted trusted-access programmes.

Restricted path Trusted access programmes Vetted cyberdefenders and life scientists (US organisations for now)

Anthropic’s Mythos page says it provides access to a small, but growing, set of vetted organisations, and only to US organisations for now.

Anthropic model page

Google

Gemini 3.7 Flash

Announced 13 Aug 2026

3.7 Flash reached developers and Gemini Spark on launch day for Pro and Ultra subscribers. Google AI Plus is the lowest paid individual tier and is not named for this launch. Google’s plan page lists 3.6 Flash for free users, and from 9 October Google says users without a plan get Flash-Lite only in the Gemini app.

First access Dated
13 Aug 2026 Day 0

Gemini API / AI Studio / Antigravity / Gemini Spark · Developers; Google AI Pro and Ultra (Spark)

Google’s launch post directs developers to start building with 3.7 Flash immediately, and Gemini Spark switched to it the same day for Pro and Ultra subscribers.

In the app Dated
13 Aug 2026 Day 0 via Spark

Gemini app / Spark · Google AI Pro and Ultra

Gemini Spark switched to 3.7 Flash on launch day for Pro and Ultra subscribers in supported countries.

Cheapest paid plan Unlisted
Not named (Pro and Ultra only)

Gemini consumer products · Google AI Plus

Google AI Plus is the lowest paid individual tier. The launch post names Pro and Ultra for Spark access.

Free plan Unlisted
Not named

Gemini consumer products · Free

The launch post names Pro and Ultra for individual access. Google’s plan page lists 3.6 Flash for free users, and from 9 October Google says users without a plan get Flash-Lite only.

SpaceXAI

Grok 4.6

Announced 12 Aug 2026

Grok 4.6 launched first on developer and coding surfaces. Current SpaceXAI pricing lists 4.6 on every consumer plan, including Free and SuperGrok Lite; the first consumer arrival date is not published. grok.com no longer names 4.6 in any chat mode: Expert and Heavy now run Grok 4.7, and Fast names no model.

First access Dated
12 Aug 2026 Day 0

Cursor / Grok Build / API / partners · Developers and users of named coding surfaces

SpaceXAI lists these surfaces as available on launch day.

In the app Included now
Included now

Grok web, iOS and Android apps · Consumer plans

Current pricing lists Grok 4.6 and the web, iOS and Android apps on every consumer plan. The first app-arrival date is not published, and the grok.com modes that name a model (Expert, Heavy) now name Grok 4.7.

Cheapest paid plan Included now
Included now

Grok · SuperGrok Lite

Current pricing lists Grok 4.6 on the lowest paid consumer plan. The first inclusion date is not published.

Free plan Included now
Included now

Grok · Free

Current pricing lists Grok 4.6 on Free. That table is the only evidence: Free’s Fast mode on grok.com names no model. The first free-tier inclusion date is not published.

What this measures

Current-state plan maps answer which models a plan appears to include today. HiseHub’s Access Map is one example. Axis Intelligence’s Announcement-to-Availability Lag tracks a different historical question: announcement to the first unrestricted paying-customer availability.

The Access Gap records those moments separately. Developer access, consumer access and plan inclusion are separate facts. Credits from the first request have their own state. Unknowns stay unknown. Restricted programmes carry no invented availability date.

The cheapest paid plan means the provider’s lowest ordinary individual paid consumer plan, where one exists. “Included” means usage comes from that plan’s allowance. Credits from the first request are recorded separately. The dataset is a snapshot, so each row carries a checked date and provider source.

This tracker covers frontier releases from OpenAI, Google, SpaceXAI and Anthropic from 12 August 2026 onward, including restricted frontier models such as Claude Mythos 5.1 and Gemini 4 Argon. A restricted variant of a public model, such as 3.8 Flash Cyber, appears as a restricted path on that model’s row. Specialised domain models and releases from other labs are outside this dataset.

This grows from One Question for Any AI Model Headline: Can You Use It? Every future launch can add another row and another set of access events, making provider rollout behaviour measurable over time.