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GPT-5

OpenAI’s most advanced model

★★★★★ 5.0/5
FactScore™ 65.1
VS

Jan

On-device ChatGPT alternative that runs 100% offline

★★★★☆ 4.0/5
FactScore™ 12

Updated February 2026

GPT-5 Jan
Rating 5.0★ 4.0★
Reviews 19 1
Pros 9 0
FactScore™ 65.1 12

FactScore™ Comparison

FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.

👑
65.1
GPT-5 FactScore™
★ GPT-5 wins on FactScore™
12
Jan FactScore™

Pros & Cons

Only in GPT-5 — Pros

AI assistant AI integration Actionable insights High-quality output Developer experience Time-saving Context aware Frequent updates High accuracy

Both tools — Pros

—

Only in Jan — Pros

No unique pros listed

Only in GPT-5 — Cons

Slow performance

Both tools — Cons

—

Only in Jan — Cons

—

Details

GPT-5 Jan
Categories LLMs, Foundation Models LLMs, Compliance software, AI Infrastructure Tools
Platforms Web Web
Became Popular August 7, 2025 February 10, 2024
Website openai.com jan.ai

Who Should Pick Which?

Choose GPT-5 if...

  • AI assistant
  • AI integration
  • Actionable insights

Choose Jan if...

  • No unique pros listed

With a FactScore™ of 65.1 vs 12, GPT-5 leads in community reception. GPT-5 uniquely offers AI assistant and AI integration, while Jan stands out for No unique pros listed.

3

What Users Say

GPT-5

R
Robin Sep 8, 2025
★★★★★

We spent months developing the new version of Tellers.AI, betting that foundation models would excel at long-form, structured outputs with native tool use. GPT-5 did not disappoint; it proved to be...

E
Elina Sep 20, 2025
★★★★★

As user study, pray, and achieve milestones, GPT-5 helps the pet reflect that progress through both words and actions, making the experience more meaningful. We also use GPT-5 to offer context-rich...

M
Max Sep 17, 2025
★★★★★

The Basedash data agent is powered by GPT-5. It allows us to ask incredibly complex questions and get genuine insights out of any data.

Jan

M
Merciful Feb 26, 2024
★★★★☆

Great desktop app which provides neat interface to work with LLMs in any way. For now lacks support of TTS which is certainly a convenient thing for the LLM. One handsome devil have provided rough ...

Frequently Asked Questions

Which is better, GPT-5 or Jan?

Based on FactScore™, GPT-5 leads with a score of 65.1 vs 12. GPT-5 has a higher rating of 5.0★ compared to 4.0★.

What are the pros of GPT-5 compared to Jan?

GPT-5 uniquely offers: AI assistant, AI integration, Actionable insights, High-quality output, Developer experience.

What are the pros of Jan compared to GPT-5?

Jan uniquely offers: No unique pros listed.

Is GPT-5 better rated than Jan?

GPT-5 is rated 5.0★ from 19 reviews. Jan is rated 4.0★ from 1 reviews.

What is the FactScore™ of GPT-5 and Jan?

FactScore™ weighs rating and review volume together. GPT-5 scores 65.1 and Jan scores 12.

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