§ Claim under review · Benchmark
"Anthropic's Claude subscription plan provides more value than OpenAI's ChatGPT Plus for the same $20 price, according to a study reported by The Register" (Instagram carousel, @amigowebsolutions, published 2026-10-07; caption adds that "a brand-new study reported by The Register reveals" Claude "delivers significantly more value," that "the research benchmarked both platforms across critical real-world tasks," and that "Claude consistently outperformed ChatGPT in deep reasoning, complex coding, and natural human-like writing")
Verdict
Partially accurate but misleading
Confidence
MediumSummary
The study is real and the basic claim holds up. On 5 October 2026 the research firm SemiAnalysis published a test of paid AI subscription plans, and The Register reported it the next day. At the $20 level, SemiAnalysis found Anthropic's Claude Pro gives users far more usage than OpenAI's ChatGPT Plus, roughly 2.9 billion tokens a month against about 1 billion, worth around $1,178 versus $211 if you bought the same usage through each company's developer pricing. What the post gets wrong is what was actually measured. The study tested how much usage each plan allows, not how good the answers are, and it says plainly that it did not measure how many tokens each model needs to finish a task. So the post's claims that Claude "consistently outperformed" on reasoning, coding and writing, and that users get better results with fewer prompts, are not findings of this study. The numbers are also a snapshot taken days after OpenAI cut limits on one of its plans, and the same firm's earlier test in June pointed the other way at the top tier, so these figures can change quickly.
The readings
key figures from the evidencedollar-value ratio, Claude Pro vs ChatGPT Plus at $20 tier
raw token ratio for agentic workload, separate from per-token API price gap
Why this verdict
Evidence
The study exists and The Register did report it. The Register's article of 6 October 2026 is headlined "Anthropic Claude subscription plan provides more value than OpenAI's, study says" and opens by attributing the finding to industry research firm SemiAnalysis, noting changes to OpenAI's $200 per month plan that effectively halved its value.
The underlying study is SemiAnalysis's "Anthropic Subscriptions Offer 5x+ More Value Than OpenAI," subtitled as limit testing every AI subscription plan from Anthropic, OpenAI, Meta, SpaceXAI, MiniMax, Moonshot, Z.ai, Cursor and Cognition , published 5 October 2026 by Andrew Megalaa, Max Kan and Dylan Patel.
What it measured is usage allowance converted into dollars, not output quality. SemiAnalysis measured each plan by token output rates, converted those figures into tokens per five-hour usage window and per month, then priced the same usage at API rates, calling that number API-equivalent value. The method involved reading hidden usage meters: it ran repeated calls isolating one token type at a time, input, cache writes, cache reads or output, recorded how far the provider's usage meter moved, kept adding steps until the range was within plus or minus 5%, then converted the share of limit used by a million tokens into an API-equivalent dollar value . The filler text was a portion of War and Peace, chosen because some models refuse to respond to large blocks of gibberish.
At the $20 tier specifically, which is what the claim asserts: the firm estimates the $20 Claude Pro plan provides 2.9 billion tokens per month compared with about 1 billion for ChatGPT's $20 subscription . In dollar terms, Claude Opus 5.5 on Claude Pro returns $1,178 (58.9 times the fee) while GPT-6.1 Sol on ChatGPT Plus returns $211 (10.6 times the fee), a ratio of 5.6x .
The study did not test task quality. SemiAnalysis did not measure how many tokens each model needs to finish a task, and says reliable data on that is missing; it built the workload mix from its own September usage. One independent write-up separates the two drivers of the headline number: for SemiAnalysis's agentic workload Claude subscriptions provide about 2.8 times as many tokens, and Opus 5.5 also costs twice as much per token at the API, which doubles the measured gap .
Context on why the gap widened: OpenAI halved the token allowances on its $200 per month plan and introduced a new $500 tier offering only marginally more capacity . The limit change took effect on 29 September 2026, days before the measurement.
Both products do cost $20. Claude Pro costs $20 per month billed monthly, or $17 per month on annual billing, per Anthropic's pricing page as checked on 5 October 2026.
A developer-focused comparison lists ChatGPT Plus at $20 per month from OpenAI's pricing page, checked 9 October 2026.
Findings
✓ What's accurate 5
- A study of this kind exists, was published by SemiAnalysis on 5 October 2026, and was reported by The Register on 6 October 2026 under a headline that says a study found Claude's subscription provides more value than OpenAI's.
- Claude Pro and ChatGPT Plus were both priced at $20 per month in the United States in early October 2026, so the "same $20 price" framing is correct.
- At the $20 tier, the study puts Claude Pro ahead on both measures reported: roughly 2.9 billion versus 1 billion tokens per month, and roughly $1,178 versus $211 in API-equivalent value.
- The study was run by a third party that bought the plans itself, not by either vendor, and both sides were measured with the same procedure.
- The study's direction of finding, that Claude plans give more model usage per dollar, is consistent across the tiers it covered, not just the $20 one.
≈ What's misleading 6
- The caption states the research "benchmarked both platforms across critical real-world tasks" and found Claude "consistently outperformed ChatGPT in deep reasoning, complex coding, and natural human-like writing." The study measured how fast usage meters drain and what that usage would cost at API list prices. It explicitly did not measure how many tokens each model needs to finish a task, and said reliable data on that is missing. A measurement of allowance has been substituted for a measurement of quality.
- "value" in the study is a defined term, API-equivalent dollars at list price under one agentic coding workload chosen by the authors. The post presents it as general-purpose worth. Roughly half the headline multiple comes from Claude Opus 5.5 costing about twice as much per token at the API, not from more work being delivered.
- The caption says "the hard data proves why" creators moved away, and "users are getting far better outputs with fewer prompts, saving hours every single week." The study contains no output-quality or time-saved measurement at all, and no user survey.
- The post refers to GPT-4 and to "Claude" generically. The study compared Claude Opus 5.5 against GPT-6.1 Sol. Naming an older OpenAI model alongside a current finding attributes the result to the wrong comparison.
- The finding is a snapshot taken days after OpenAI cut limits on its $200 plan on 29 September 2026, and SemiAnalysis itself notes providers can change limits without notice. The post presents it as a durable and widening structural gap.
- "the gap is widening fast" is presented as a trend. A single measurement round, following one competitor's recent limit change, does not establish a trajectory. The same firm's June 2026 round had OpenAI's $200 tier ahead on API-equivalent value, which shows how quickly these figures move.
? What's uncertain 5
- Whether The Register's full article frames the finding at the $20 tier in the same terms as the post, since only its headline and opening paragraph were available outside the article page.
- The exact figure tables in the SemiAnalysis report, which sit behind a paid wall. The $20-tier numbers are consistent across several independent secondary summaries but were not read in the primary document.
- Whether the API-equivalent dollar gap translates into any real user advantage, since no one has measured how many tokens each model needs to complete the same task. The study says that data is missing.
- Whether either vendor disputes the measurements. No response from Anthropic or OpenAI to this specific study was found, beyond one provider confirming a very small A/B test on account limits.
- How representative the agentic coding workload is for a typical $20 subscriber, since the mix was drawn from the authors' own September usage.
Sources
8 of 8 linked to recordsSemiAnalysis, "Anthropic Subscriptions Offer 5x+ More Value Than OpenAI," by Andrew Megalaa, Max Kan and Dylan Patel, 5 October 2026
The Register article page of record, "Anthropic Claude subscription plan provides more value than OpenAI's, study says," 6 October 2026
Dataconomy report on the study, 7 October 2026
Implicator.ai report on the study, 5 October 2026
Pulse/Adyog summary including the study's stated limitations
Orcarouter and Lavx tier-by-tier summaries
Independent commentary unpacking the token-count versus dollar-value distinction
Pricing trackers citing the vendors' own pricing pages as checked 5 and 9 October 2026