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AI model history

What was the top AI model in ?

GPT-4 from OpenAI, scoring 6.7 on the Intelligence Index at $38 per million tokens. It had been on top for 4 months.

Top Intelligence Index score on each day. Click anywhere to go there.

Leaderboard

The top 5 on June 30, 2023

Ranked by the Artificial Analysis Intelligence Index, with each model's price on that day (per million tokens, 3 parts input to 1 part output). The index uses today's harder tests, so models from before late 2024 all score between 5 and 9 and their order is rough.

  1. 1
    GPT-4Closed
    OpenAI · released Mar 14, 2023 · 4 months old
    Intelligence 6.7
    $38 /M
  2. 2
    GPT-3.5 TurboClosed
    OpenAI · released Nov 30, 2022 · 7 months old
    Intelligence 5.5
    $0.75 /M
  3. 3
    PALM-2Closed
    Google · released May 10, 2023 · 7 weeks old
    Intelligence 5.4
    No public price
  4. 4
    Llama 65BOpen weights
    Meta · released Feb 24, 2023 · 4 months old
    Intelligence 5
    No public price
  5. 5
    Claude InstantClosed
    Anthropic · released Mar 14, 2023 · 4 months old
    Intelligence 5
    No public price

3.5 years later

What has happened since

#369Where GPT-4 ranks today

495 models have come out since. Today's best is Claude Opus 5.5 at 57.6, 50.9 points higher.

940×Cheaper for the same score

Gemma 4 E4B scores at least as well today for $0.04 per million tokens, against $38 for GPT-4 back then.

13 monthsUntil it cost under $1

GPT-4o mini matched it for $0.26 per million tokens on Jul 18, 2024.

13 monthsUntil open weights caught up

Llama 3.1 Instruct 405B from Meta matched it on Jul 23, 2024, free to download and run.

The race

Which lab held the top spot

OpenAI led for 2.5 years of the 4 years since ChatGPT launched. Anthropic has held #1 since Apr 16, 2026, 6 models in a row. We rank by the Artificial Analysis Intelligence Index. Other leaderboards, such as LMArena's human votes, crown different models.

  • OpenAI65%2.5 years at #1 across 12 models. Longest: GPT-4, 8 months.
  • Anthropic33%15 months at #1 across 11 models. Longest: Claude 3 Opus, 6 months.
  • xAI2%4 weeks at #1 across 1 model. Longest: Grok 4, 4 weeks.
  • Google<1%6 days at #1 across 1 model. Longest: Gemini 3 Pro Preview, 6 days.

The wider field

5 models were out on Jun 30, 2023

Best open model
Llama 65B

Meta, scoring 5. #4 overall, 1.7 points behind.

Best under $1 per million
GPT-3.5 Turbo

OpenAI, scoring 5.5. #2 overall at $0.75, 50× cheaper than #1.

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The top AI model, month by month

2026
2025
2024
2023
2022

Try today's top models on your own prompt

Scores tell you who leads on average. Send one prompt to up to six models and see which answer you'd actually use, with what each one cost. For the long view of prices, read Six months later, the best AI costs 20× less.

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Scores and release dates from Artificial Analysis (Intelligence Index, best published effort of each model), data through October 18, 2026. Prices are list prices on the day, including later cuts we know of. Models without a public price are ranked but not priced.