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Models

The models we track

The AI models behind ChatGPT, Claude, Gemini and others, most often in a task's top three first.

ModelIn the top three forCost / 1,000 requestsEvidenceReleased
Claude Fable 5.1
Anthropic
14 tasks
business, maths and science, legal questions…
$55Independently tested1 Sept 2026
Gemini 3.8 Flash
Google DeepMind
13 tasks
studying and homework, planning and personal admin, business…
$4.13Independently tested2 Sept 2026
GPT-6 Astra
OpenAI
7 tasks
research, coding and building apps, Excel and spreadsheets…
$55Independently tested3 Sept 2026
Claude Opus 5.5
Anthropic
5 tasks
planning and personal admin, translation and languages, writing…
$22Early results23 Sept 2026
Kimi K3
Moonshot AI
2 tasks
studying and homework, maths and science
$17Independently tested17 Jul 2026
GPT-5.6 Sol
OpenAI
2 tasks
research, coding and building apps
$22Independently tested–
Gemini 3.6 Flash
Google DeepMind
1 task
research
$4.13Independently tested21 Jul 2026
Gemini 3.1 Pro
Google DeepMind
1 task
documents, PDFs and notes
$12Independently tested–
GPT-6 Luna
OpenAI
None yet$0.55Early results22 Sept 2026
GPT-6 Sol
OpenAI
None yet$11Early results22 Sept 2026
DeepSeek V4.1 Flash
DeepSeek
None yet$0.72Independently tested10 Sept 2026
DeepSeek V4 Pro
DeepSeek
None yet$1.48Independently tested13 Aug 2026
Gemini 3.5 Flash-Lite
Google DeepMind
None yet$2.35Independently tested21 Jul 2026
Claude Sonnet 5
Anthropic
None yet$11Independently tested29 Jun 2026
Claude Haiku 4.5
Anthropic
None yet$5.50Independently tested15 Oct 2025
GPT-5.6 Luna
OpenAI
None yet$1.24Independently tested–

Older versions

Replaced by a newer version. A new version starts with no results; we never assume it performs like the old one.

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