ChatGPT

AI Chatbots & Assistants

OpenAI's market-leading AI assistant powered by GPT-5.4 Thinking with 1M token context

ChatGPT is OpenAI's flagship AI assistant, now powered by GPT-5.4 Thinking — the latest frontier model with built-in advanced reasoning, 1M token context window, and computer-use capabilities. The GPT-5 family includes GPT-5.4 Thinking (frontier reasoning), GPT-5.4 Pro (precision), GPT-5.3 Instant (everyday use), and GPT-5.3-Codex (agentic coding). ChatGPT supports web browsing, code execution, file analysis, image generation via GPT Image 1.5, and DALL-E has been deprecated in favour of the new GPT Image models. Over 300 million weekly active users. OpenAI has also released open-weight reasoning models (gpt-oss-120b and gpt-oss-20b).

Last updated: 2026-03-12 00:09:18

4.7
Overall Rating
Visit ChatGPT → View alternatives
Company Size
Solopreneur to Enterprise
Free Trial
No
Free Plan
Yes
Deployment
Cloud
In-Depth Comparison

ChatGPT vs Claude (2026)

Model-by-model deep comparison — context windows, API pricing, benchmarks, and use-case verdicts.

AI Models Powering ChatGPT

9 models from 1 vendor

GPT-5.4

Primary Current
OpenAI · GPT-5 · gpt-5.4-2026-03-05
$2.50 / $15.00
per MTok in/out
Context Window
1.05M tokens
Max Output
128K tokens
Input
text, image, audio, file
Output
text
Knowledge Cutoff
August 2025
Web Search Code Execution Computer Use File Upload API

OpenAI's flagship model (March 2026). 1.05M context window with 128K output. Knowledge cutoff August 2025. Supports computer use.

Source ↗ Verified 2026-03-09 high confidence

GPT Image 1

Current
OpenAI · GPT Image · gpt-image-1
Input
text, image
Output
image
Image Gen File Upload API

Replaced DALL·E 3 as OpenAI's primary image generation model. Supports editing and style transfer.

Source ↗ Verified 2026-03-09 high confidence

GPT-4o

Deprecated
OpenAI · GPT-4o · gpt-4o
$2.50 / $10.00
per MTok in/out
Context Window
128K tokens
Max Output
16.4K tokens
Input
text, image, audio
Output
text
Web Search Code Execution Voice File Upload API

Legacy multimodal model. 128K context. Retired from ChatGPT. GPT-5.1 offers better performance at lower cost ($0.625/$5.00).

Source ↗ Verified 2026-03-09 high confidence

GPT-4o mini

Deprecated
OpenAI · GPT-4o · gpt-4o-mini
$0.15 / $0.60
per MTok in/out
Context Window
128K tokens
Max Output
16.4K tokens
Input
text, image
Output
text
Web Search File Upload API

Legacy budget model. 128K context. Superseded by GPT-5 Nano and GPT-5 Mini which offer better performance at similar or lower cost.

Source ↗ Verified 2026-03-09 high confidence

GPT-5.3 Instant

Current
OpenAI · GPT-5 · gpt-5.3-instant
$1.75 / $14.00
per MTok in/out
Input
text, image, file
Output
text
Web Search Code Execution Voice File Upload API

ChatGPT's current default model. Optimised for speed and conversational use. Released alongside GPT-5.4.

Source ↗ Verified 2026-03-11 high confidence

GPT-5.4 Pro

Current
OpenAI · GPT-5 · gpt-5.4-pro
$30.00 / $180.00
per MTok in/out
Context Window
1.05M tokens
Max Output
128K tokens
Input
text, image, audio, file
Output
text
Web Search Code Execution Computer Use File Upload API

Highest-cost OpenAI model. Same 1.05M context and 128K output as GPT-5.4 but with enhanced reasoning. For demanding professional workloads.

Source ↗ Verified 2026-03-11 high confidence

o3

Current
OpenAI · o3 · o3
$2.00 / $8.00
per MTok in/out
Context Window
200K tokens
Max Output
100K tokens
Input
text, image
Output
text
Web Search Code Execution File Upload API

OpenAI's reasoning model (April 2025). Uses chain-of-thought for complex multi-step problems. 200K context, 100K max output. Knowledge cutoff June 2024.

Source ↗ Verified 2026-03-09 high confidence

o3-Pro

Current
OpenAI · o3 · o3-pro
$20.00 / $80.00
per MTok in/out
Context Window
200K tokens
Max Output
100K tokens
Input
text, image
Output
text
Web Search Code Execution File Upload API

Enhanced reasoning variant of o3. Slower but more thorough analysis. Highest-cost OpenAI model.

Source ↗ Verified 2026-03-09 medium confidence

o4-mini

Current
OpenAI · o4 · o4-mini
$1.10 / $4.40
per MTok in/out
Context Window
200K tokens
Max Output
100K tokens
Input
text, image
Output
text
Web Search Code Execution File Upload API

Cost-efficient reasoning model. 200K context, 100K max output. Replaced o3-mini. Good balance of reasoning capability and speed.

Source ↗ Verified 2026-03-11 high confidence

Model data sourced from official vendor documentation. View all models →

Recent Model Updates

2026-03-06
release GPT-5.4 Pro released as premium reasoning tier at $30/$180 per MTok. source ↗
2026-03-05
release GPT-5.4 released with 1.05M context window, 128K max output, computer use support, and improved reasoning. source ↗
2026-03-05
release GPT-5.3 Instant released as the new default model in ChatGPT. source ↗
2026-01-15
pricing change o3 pricing reduced by 80% — input from $10 to $2, output from $40 to $8 per MTok. source ↗
2025-06-10
release o3-Pro released for deep analysis tasks. Available to Pro and Team users. Replaced o1-pro. source ↗
See all recent model changes →

ChatGPT Pricing

Free

Free

Plus

$20
flat rate

Team

$25
per user/month

Pro

$200
flat rate

Pricing verified as of research date. Contact vendor for current pricing.

ChatGPT Features

Code & Development

Code Generation

Conversation & Chat

Conversation Memory
Custom Instructions
File Upload & Analysis
Natural Language Chat
Reasoning & Chain of Thought
Web Browsing

Image & Visual

Text-to-Image

Platform & Infrastructure

API Access
Browser Extension
Data Privacy Controls
Mobile App
Team Management

ChatGPT Pros & Cons

Pros

  • + Most versatile AI assistant with broadest capability set
  • + Strong free tier that covers most basic needs
  • + Excellent plugin and GPTs ecosystem
  • + Reliable and fast with massive infrastructure

Cons

  • - Can hallucinate facts with unwarranted confidence
  • - Pro plan at $200/month is very expensive
  • - Data privacy concerns for sensitive business use
  • - Output quality can vary between sessions

ChatGPT Integrations

Zapier (via API) Google Drive Microsoft 365 Slack (via API)

Company Info

Company
OpenAI
Founded
2022
Headquarters
San Francisco, CA, USA
Deployment
Cloud

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