ChatGPT by OpenAI

Get answers. Find inspiration. Be more productive.

★★★★★ 4.9/5
FactScore™ 136.2
VS

SIMA 2

Google's most capable AI agent for virtual 3D worlds

★★★★★ 5.0/5
FactScore™ 54

Updated February 2026

ChatGPT by OpenAI SIMA 2
Rating 4.9★ 5.0★
Reviews 643 11
Pros 18 8
FactScore™ 136.2 54

FactScore™ Comparison

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

👑
136.2
ChatGPT by OpenAI FactScore™
★ ChatGPT by OpenAI wins on FactScore™
54
SIMA 2 FactScore™

Pros & Cons

Only in ChatGPT by OpenAI — Pros

Versatile tool Fast performance Context aware Productivity booster Brainstorming support Writing assistance Coding assistance Problem-solving capabilities Creative inspiration Learning tool Free tier Personalization Reliability AI autocomplete Community plugins Fast setup Time-saving Workflow automation

Both tools — Pros

Only in SIMA 2 — Pros

Large context window GCP integration Multimodal capabilities Personalized insights Predictive analytics Trend detection Video input support Video understanding

Only in ChatGPT by OpenAI — Cons

Slow performance Inaccurate responses Context aware Free tier Generic responses Price AI autocomplete Community plugins Easy integration Excellent documentation Expensive Reliability

Both tools — Cons

Only in SIMA 2 — Cons

Details

ChatGPT by OpenAI SIMA 2
Categories LLMs, AI Chatbots LLMs
Platforms Web · iOS · Android Web
Became Popular December 2, 2022 November 14, 2025
Website openai.com goo.gle

Who Should Pick Which?

Choose ChatGPT by OpenAI if...

  • Versatile tool
  • Fast performance
  • Context aware

Choose SIMA 2 if...

  • Large context window
  • GCP integration
  • Multimodal capabilities

With a FactScore™ of 136.2 vs 54, ChatGPT by OpenAI leads in community reception. ChatGPT by OpenAI uniquely offers Versatile tool and Fast performance, while SIMA 2 stands out for Large context window and GCP integration.

3

What Users Say

ChatGPT by OpenAI

S
Satyanarayana Aug 8, 2025
★★★★☆

I’ve been using ChatGPT for months now, and it has become my go-to companion for everything — from writing polished professional emails to brainstorming creative content, from researching obscure h...

M
Mingji Mar 28, 2025
★★★★★

We used OpenAI's ChatGPT service before. To be honest, ChatGPT's ability to express AI comic stories, scripts, and storyboards is very outstanding. Its context understanding is very accurate, and e...

I
Ian Apr 23, 2025
★★★★★

We use ChatGPT to generate high-quality, natural-sounding content variants in real time. It outperformed other AI writing tools with its fluency, tone control, and flexibility—critical when you're ...

SIMA 2

A
Alex Apr 3, 2024
★★★★★

With a 1M token context window, we use Gemini to collate data across companies with huge article libraries to detect trends and power predictive sales analytics to power Claude Opus.

R
rhythm Jun 8, 2025
★★★★★

Gemini 1.5 Pro offers long context, smart code gen, and seamless GCP integration—ideal for QA.

R
Rohan Oct 5, 2024
★★★★★

The only model that supports video input today, up to 50 minutes, so the only multi-modal model that enables this on the planet. Not even openAI or Anthropic supports this yet.

Frequently Asked Questions

Which is better, ChatGPT by OpenAI or SIMA 2?

Based on FactScore™, ChatGPT by OpenAI leads with a score of 136.2 vs 54. ChatGPT by OpenAI has a higher rating of 4.9★ compared to 5.0★.

What are the pros of ChatGPT by OpenAI compared to SIMA 2?

ChatGPT by OpenAI uniquely offers: Versatile tool, Fast performance, Context aware, Productivity booster, Brainstorming support.

What are the pros of SIMA 2 compared to ChatGPT by OpenAI?

SIMA 2 uniquely offers: Large context window, GCP integration, Multimodal capabilities, Personalized insights, Predictive analytics.

Is ChatGPT by OpenAI better rated than SIMA 2?

ChatGPT by OpenAI is rated 4.9★ from 643 reviews. SIMA 2 is rated 5.0★ from 11 reviews.

What is the FactScore™ of ChatGPT by OpenAI and SIMA 2?

FactScore™ weighs rating and review volume together. ChatGPT by OpenAI scores 136.2 and SIMA 2 scores 54.

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