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Oriel · Observatory

Capability frontier

Independent tracking of 586 language models and 11 media arenas — capability, price, and speed, captured daily.

57.6Anthropic · Sep 22, 2026
Capability frontier — Intelligence index × release date664 models, Nov 30, 2022 – Sep 26, 2026. Each dot is a model. The gold line is the ceiling at that date.02040602023202420252026GPT-3.5 Turbo · OpenAI · Nov 30, 2022 · 5.5GPT-4 · OpenAI · Mar 14, 2023 · 6.7GPT-4 Turbo · OpenAI · Nov 6, 2023 · 7Claude 3 Opus · Anthropic · Mar 4, 2024 · 8.7o1-preview · OpenAI · Sep 12, 2024 · 11.4o1 · OpenAI · Dec 5, 2024 · 15.2Claude 3.7 Sonnet (Reasoning) · Anthropic · Feb 24, 2025 · 17.7o3 · OpenAI · Apr 16, 2025 · 20.2Claude 4 Opus (Reasoning) · Anthropic · May 22, 2025 · 20.6o3-pro · OpenAI · Jun 10, 2025 · 21.9Grok 4 · SpaceXAI · Jul 10, 2025 · 22.5Claude 4.1 Opus (Reasoning) · Anthropic · Aug 5, 2025 · 22.8GPT-5 (high) · OpenAI · Aug 7, 2025 · 23GPT-5 Codex (high) · OpenAI · Sep 23, 2025 · 24.9Gemini 3 Pro Preview (high) · Google · Nov 18, 2025 · 28Claude Opus 4.5 (Reasoning) · Anthropic · Nov 24, 2025 · 29.1GPT-5.2 (xhigh) · OpenAI · Dec 11, 2025 · 30.4GPT-5.3 Codex (xhigh) · OpenAI · Feb 5, 2026 · 32.5GPT-5.4 (xhigh) · OpenAI · Mar 5, 2026 · 39Claude Opus 4.7 (Adaptive Reasoning, Max Effort) · Anthropic · Apr 16, 2026 · 40.7Claude Opus 4.8 (Adaptive Reasoning, Max Effort) · Anthropic · May 28, 2026 · 41.8Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) · Anthropic · Jun 9, 2026 · 49.6Claude Opus 5 (Adaptive Reasoning, Max Effort) · Anthropic · Jul 24, 2026 · 50.8Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback) · Anthropic · Sep 1, 2026 · 53.4Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) · Anthropic · Sep 22, 2026 · 57.657.6Anthropic
Each dot is a model. The gold line is the ceiling at that date.Intelligence index × release date
Data table · 25
ReleasedModelVendorIntelligence
2022-11-30GPT-3.5 TurboOpenAI5.5
2023-03-14GPT-4OpenAI6.7
2023-11-06GPT-4 TurboOpenAI7
2024-03-04Claude 3 OpusAnthropic8.7
2024-09-12o1-previewOpenAI11.4
2024-12-05o1OpenAI15.2
2025-02-24Claude 3.7 Sonnet (Reasoning)Anthropic17.7
2025-04-16o3OpenAI20.2
2025-05-22Claude 4 Opus (Reasoning)Anthropic20.6
2025-06-10o3-proOpenAI21.9
2025-07-10Grok 4SpaceXAI22.5
2025-08-05Claude 4.1 Opus (Reasoning)Anthropic22.8
2025-08-07GPT-5 (high)OpenAI23
2025-09-23GPT-5 Codex (high)OpenAI24.9
2025-11-18Gemini 3 Pro Preview (high)Google28
2025-11-24Claude Opus 4.5 (Reasoning)Anthropic29.1
2025-12-11GPT-5.2 (xhigh)OpenAI30.4
2026-02-05GPT-5.3 Codex (xhigh)OpenAI32.5
2026-03-05GPT-5.4 (xhigh)OpenAI39
2026-04-16Claude Opus 4.7 (Adaptive Reasoning, Max Effort)Anthropic40.7
2026-05-28Claude Opus 4.8 (Adaptive Reasoning, Max Effort)Anthropic41.8
2026-06-09Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback)Anthropic49.6
2026-07-24Claude Opus 5 (Adaptive Reasoning, Max Effort)Anthropic50.8
2026-09-01Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback)Anthropic53.4
2026-09-22Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback)Anthropic57.6

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09-26

Sep 26, 20261 changes
  • ScoreApodex 1.1ApodexIntelligence index30.4→26.4-13%

09-25

Sep 25, 20269 changes

09-24

Sep 24, 202636 changes

Intelligence index

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Image, video, speech, and music, ranked by Elo