SIMA 2
Google's most capable AI agent for virtual 3D worlds
Selene by Atla
Frontier models to evaluate generative AI
FactScore™ 0Updated February 2026
| SIMA 2 | Selene by Atla | |
|---|---|---|
| Rating | 5.0★ | N/A |
| Reviews | 11 | 0 |
| Pros | 8 | 0 |
| FactScore™ | 54 | 0 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in SIMA 2 — Pros
Large context window GCP integration Multimodal capabilities Personalized insights Predictive analytics Trend detection Video input support Video understandingBoth tools — Pros
—Only in Selene by Atla — Pros
No unique pros listedOnly in SIMA 2 — Cons
—Both tools — Cons
—Only in Selene by Atla — Cons
—Details
| SIMA 2 | Selene by Atla | |
|---|---|---|
| Categories | LLMs | LLMs |
| Platforms | Web | Web |
| Became Popular | November 14, 2025 | March 11, 2025 |
| Website | goo.gle | www.atla-ai.com |
Who Should Pick Which?
Choose SIMA 2 if...
- Large context window
- GCP integration
- Multimodal capabilities
Choose Selene by Atla if...
- No unique pros listed
With a FactScore™ of 54 vs 0, SIMA 2 leads in community reception. SIMA 2 uniquely offers Large context window and GCP integration, while Selene by Atla stands out for No unique pros listed.
What Users Say
SIMA 2
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.
Gemini 1.5 Pro offers long context, smart code gen, and seamless GCP integration—ideal for QA.
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.
Selene by Atla
No reviews yet
Frequently Asked Questions
Which is better, SIMA 2 or Selene by Atla?
Based on FactScore™, SIMA 2 leads with a score of 54 vs 0. SIMA 2 has a higher rating of 5.0★ compared to N/A★.
What are the pros of SIMA 2 compared to Selene by Atla?
SIMA 2 uniquely offers: Large context window, GCP integration, Multimodal capabilities, Personalized insights, Predictive analytics.
What are the pros of Selene by Atla compared to SIMA 2?
Selene by Atla uniquely offers: No unique pros listed.
Is SIMA 2 better rated than Selene by Atla?
SIMA 2 is rated 5.0★ from 11 reviews. Selene by Atla is rated N/A★ from 0 reviews.
What is the FactScore™ of SIMA 2 and Selene by Atla?
FactScore™ weighs rating and review volume together. SIMA 2 scores 54 and Selene by Atla scores 0.
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