# Sphere: Multi-Model AI Chat — Compare GPT, Claude & Gemini

> Compare GPT, Claude & Gemini (iPhone/iPad app by Rajesh Cherukuri.)

- Source: https://appshunter.io/ios/app/sphere-multi-model-ai-chat/id6781198480 (this page in markdown: same URL + `.md`)
- Developer: [Rajesh Cherukuri](https://appshunter.io/developer/6781198482)
- Category: Productivity
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 16.4 · 57 MB
- Languages: American English
- Released: 2026-07-10
- Data updated: 2026-08-04
- User reviews in markdown: https://appshunter.io/ios/app/sphere-multi-model-ai-chat/id6781198480/reviews.md

## What is Sphere?

The multi-model advantage.

Every AI model has different strengths. GPT-5 reasons sharply. Claude writes beautifully. Gemini knows the web. Why settle for one?

Sphere runs your prompt across up to 4 AI models simultaneously and shows you all the answers in a swipeable carousel, so you can read, compare, and use the best one.

MODELS INCLUDED 
• OpenAI GPT-5.5 & GPT-5.4 Mini 
• Anthropic Claude Opus 4.8, Sonnet 4.6 & Haiku 4.5 
• Google Gemini 3.1 Pro & Gemini Flash 3.5 
• xAI Grok 4
• DeepSeek R1

KEY FEATURES 
• Side-by-side comparison — see up to 4 models answer your question at once 
• Real-time streaming — answers appear as they're generated 
• Voice input — dictate your prompts hands-free 
• Image & file attachments — share screenshots, documents, and more 
• Thread history — every conversation is saved and searchable

SPHERE PRO Unlock all premium models, compare up to 4 at once, and get 500 prompts per month with unlimited threads.

Subscriptions are billed through your Apple ID. Cancel anytime in Settings → Apple ID → Subscriptions.

Privacy Policy: https://mnemosphere.ai/sphere/privacy-policy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $7.99 | per month |
| Premium Yearly | $54.99 | per year |



## Version history (last 2 releases)

### 1.0.1 — 2026-07-28

• Updated AI models, including GPT-5.6 Sol, Claude Sonnet 5, Claude Opus 5, and Grok 4.5
• Model list now stays in sync with the latest available models
• Stability and launch improvements

### 1.0 — 2026-07-10

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-04.*