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Which AI
OpenAI

ChatGPT

The broadest feature set of the five: search, voice, image generation, deep research and Codex, OpenAI's coding agent, from the $20 Plus tier. GPT-6 Astra is in chat on Pro; on Plus it is limited to Codex.

See plans on ChatGPT ↗
81.1
Very good · #2 overall
No changeMedium confidence
Overall
#2 of 14
Coding
#5 of 14
Best value
#2 of 14

Why it scores 81.1

Intelligence
80
Features
100
Sentiment
71
Why it scores highly
  • Access to the strongest models we track — GPT-6.1 Sol: 168.5 on the Epoch Capabilities Index

Score history

Overall category, since tracking began on 31 August 2026.

66758429 Sept 202615 Nov 2026
68.9 → 81.1 over 52 snapshots

Plans

PlanMonthlyAnnualRank
ChatGPT Free
Limited access to OpenAI's current models
Usage: Baseline for ChatGPT's paid plans.
Free
unverified
——
ChatGPT Go
Expanded access to OpenAI's instant model
Usage: 10x more messages, file uploads and image creation than Free.
$8
——
ChatGPT Plus
GPT-5.6 in Chat. GPT-6 Sol and GPT-6 Astra in Codex, Astra with a small allowance (about 5–45 messages per 5 hours).
Usage: Not stated against Free. Plus sits above Go (10x Free), so recorded as at least 10x.
$20
—#2
ChatGPT Pro
GPT-6 Pro (Astra) in Chat, and GPT-6 Astra and Sol in Codex with much higher allowances
Usage: 5x Plus usage.
$100
—#1
ChatGPT Pro (20x)
GPT-6 Pro (Astra) in Chat, and GPT-6 Astra and Sol in Codex with much higher allowances
Usage: 20x Plus usage. Closed to new sign-ups since 10 September 2026.
$200
unverified
——
Source: chatgpt.com · unverified

Benchmarks

  • Epoch Capabilities IndexOpenAI: GPT-6 Sol163.8source
  • Epoch Capabilities IndexOpenAI: GPT-6.1 Sol168.5source
  • Epoch Capabilities IndexOpenAI: GPT-6 Astra169.0source
  • Artificial Analysis Intelligence IndexOpenAI: GPT-6.1 Sol52.5source
  • Artificial Analysis Intelligence IndexOpenAI: GPT-6 Astra56.9source
  • WebDev ArenaOpenAI: GPT-6 Sol1689.3source
  • Artificial Analysis Intelligence IndexOpenAI: GPT-6 Sol34.2source
  • WebDev ArenaOpenAI: GPT-6.1 Sol1758.7source
  • FrontierCodeOpenAI: GPT-6.1 Sol50.2%source
  • Artificial Analysis Coding IndexOpenAI: GPT-6 Astra76.9source
  • FrontierCodeOpenAI: GPT-6 Sol49.3%source
  • WebDev ArenaOpenAI: GPT-6 Astra1800.3source
  • FrontierCodeOpenAI: GPT-6 Astra53.3%source
  • DeepSWEOpenAI: GPT-6 Astra74.1%source

Models included in this provider’s plans. Independent results from Epoch AI (CC BY 4.0) and Artificial Analysis.