Gemini vs ChatGPT
Gemini and ChatGPT side by side: what each one is, verified plan pricing and install commands where we have them, and the full review of each.
Gemini
Google's model family. As of October 2026 Gemini 4 Argon (GA October 13, 1M token context) is the flagship for coding and agents, with Gemini 3.8 Flash (free tier in AI Studio) as the fast, cheaper option.
ChatGPT
OpenAI's chat app. As of October 2026 Free and Go run GPT-6 Luna; Plus ($20/mo) adds GPT-6.1 Sol and GPT-6 Astra. Agent mode, Codex, image generation, code interpreter.
At a glance
| Field | | |
|---|---|---|
| Category | AI Models | AI Models |
| Website | deepmind.google | chat.openai.com |
| Pricing | Free tier - free input and output tokens in Google AI Studio on selected models such as Gemini 3.8 Flash; not available for Gemini 4 Argon; content used to improve Google products; Gemini 4 Argon - $2 input / $10 output per 1M tokens through November 30, 2026, then $4 / $20 from December 1, 2026; Gemini 3.8 Flash - $0.75 input / $3.75 output per 1M tokens through December 31, 2026, then $1.50 / $7.50 from January 1, 2027; Batch API - 50% cost reduction on paid tier; Enterprise - via Gemini Enterprise Agent Platform, contact sales | Free - $0: unlimited text chats with GPT-6 Luna, limited uploads, image creation, deep research and Codex; Go - $8/mo: more messages, uploads, image creation and memory; may include ads; Plus - $20/mo: GPT-6.1 Sol and GPT-6 Astra, expanded Codex, ChatGPT Work on desktop, web and mobile; Pro - $100, $200 or $500/mo (Pro 100, 200 and 500): GPT-6 Astra Pro reasoning, dots; Ultrafast only on Pro 500; Business - 2+ users, Standard or Premium seats; Premium adds 5x usage, no five-hour limit and dots; Enterprise and Edu - contact sales |
| Install | pip install -U google-genai or npm install @google/genai | Not verified yet |
| Models | Gemini 4 Argon (gemini-4-argon) is the flagship for coding, agents, math and science, with a 1,048,576-token context window and up to 1M output tokens with long decode. Gemini 3.8 Flash, 3.6 Flash, 3.5 Flash-Lite, 3.8 Live and the Gemini 3.1 Pro preview are also listed; you pick one with the model string in each request. | In the Chat tab, Free and Go run GPT-6 Luna, while Plus, Pro, Business and Enterprise run GPT-6 Sol from Instant through Extra High reasoning, with the Pro reasoning option on GPT-6 Astra. Plus and above also get GPT-6.1 Sol, GPT-6 Astra and GPT-5.6 models in the model picker. |
| Last verified | October 29, 2026 | October 27, 2026 |
In Depth
Gemini
Gemini is Google's AI model family. As of October 2026 the Gemini API lineup is led by Gemini 4 Argon, generally available since October 13, 2026 as Google's most capable model for complex coding, agentic, math and science tasks, with a 1,048,576-token context window. Gemini 3.8 Flash, built for long-horizon software engineering and autonomous agents, is the faster, cheaper option, alongside Gemini 3.6 Flash, 3.5 Flash-Lite, the 3.8 Live models and the Gemini 3.1 Pro preview. The Gemini API free tier in Google AI Studio covers selected models such as Gemini 3.8 Flash but not Gemini 4 Argon. Available via the Gemini API and Google AI Studio, with enterprise access through the Gemini Enterprise Agent Platform. The 1M context window makes it a strong fit for large codebases and long document analysis in a single pass.
ChatGPT
ChatGPT is OpenAI's consumer AI app and one of the most widely used AI products. As of October 2026 the Free and Go ($8/mo) plans run GPT-6 Luna, while Plus ($20/mo) and Pro (from $100/mo) unlock GPT-6.1 Sol and GPT-6 Astra, and agent mode can execute multi-step tasks autonomously. I've made 7+ videos covering ChatGPT features - Tasks (149K views), Agent mode (112K views), Desktop integration with VS Code (63K views), Canvas (51K views). My ChatGPT content consistently performs well because it has the broadest audience. I use it alongside Claude - ChatGPT for image generation and quick questions. Claude for coding and deep analysis.
FAQ
Answers taken from each tool's verified fact sheet, with the date it was last checked.
How much does Gemini cost?
As of October 29, 2026: Free tier - free input and output tokens in Google AI Studio on selected models such as Gemini 3.8 Flash; not available for Gemini 4 Argon; content used to improve Google products; Gemini 4 Argon - $2 input / $10 output per 1M tokens through November 30, 2026, then $4 / $20 from December 1, 2026; Gemini 3.8 Flash - $0.75 input / $3.75 output per 1M tokens through December 31, 2026, then $1.50 / $7.50 from January 1, 2027; Batch API - 50% cost reduction on paid tier; Enterprise - via Gemini Enterprise Agent Platform, contact sales. Source: Gemini Developer API pricing, Gemini API changelog, Gemini 4 Argon model page, Gemini API quickstart.
How do I install Gemini?
Official install commands as of October 29, 2026: pip install -U google-genai or npm install @google/genai.
Which models does Gemini use?
As of October 29, 2026: Gemini 4 Argon (gemini-4-argon) is the flagship for coding, agents, math and science, with a 1,048,576-token context window and up to 1M output tokens with long decode. Gemini 3.8 Flash, 3.6 Flash, 3.5 Flash-Lite, 3.8 Live and the Gemini 3.1 Pro preview are also listed; you pick one with the model string in each request.
How much does ChatGPT cost?
As of October 27, 2026: Free - $0: unlimited text chats with GPT-6 Luna, limited uploads, image creation, deep research and Codex; Go - $8/mo: more messages, uploads, image creation and memory; may include ads; Plus - $20/mo: GPT-6.1 Sol and GPT-6 Astra, expanded Codex, ChatGPT Work on desktop, web and mobile; Pro - $100, $200 or $500/mo (Pro 100, 200 and 500): GPT-6 Astra Pro reasoning, dots; Ultrafast only on Pro 500; Business - 2+ users, Standard or Premium seats; Premium adds 5x usage, no five-hour limit and dots; Enterprise and Edu - contact sales. Source: ChatGPT pricing, ChatGPT Business, About ChatGPT Pro tiers, ChatGPT release notes.
Which models does ChatGPT use?
As of October 27, 2026: In the Chat tab, Free and Go run GPT-6 Luna, while Plus, Pro, Business and Enterprise run GPT-6 Sol from Instant through Extra High reasoning, with the Pro reasoning option on GPT-6 Astra. Plus and above also get GPT-6.1 Sol, GPT-6 Astra and GPT-5.6 models in the model picker.
