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AI Assistants: ChatGPT vs Claude vs Gemini vs Copilot (2025)

We compared real workflows across writing, coding, web research, and team collaboration. Below: verdicts, a feature matrix, technical parameters, and hands-on notes to help you choose confidently.

Best overall
ChatGPT

Balanced across writing, research, and tool-use. Great ecosystem and team features.

Editor’s Choice
Try ChatGPT ↗
Best for long docs & summarization
Claude

Superb with long context and clean summaries — excellent for digesting PDFs.

Team Favorite
Visit ↗
#Writing#Coding#Web research#Long docs#Best value

Feature & capability matrix

AssistantPricingFilesImagesWebTeam spacesPlugins/ToolsBest for
ChatGPTFreemium Yes Yes Yes Yes YesWell-rounded generalist
ClaudeFreemium Yes Yes Yes Yes NoLong docs & summaries
GeminiFreemium Yes Yes Yes Yes YesGeneral
Microsoft CopilotFreemium Yes Yes Yes Yes YesValue & Office

Technical parameters

ChatGPT
Model family:GPT / O-series (varies by plan)
API:Yes
Ecosystem:Plugins/tools, assistants, file creation & browsing (plan-dependent)
Privacy/Controls:Org workspaces, policy controls vary by tier
File support:Docs, sheets, images, PDFs (plan-dependent)
Claude
Model family:Claude 3.x / Sonnet, Haiku, Opus (varies)
API:Yes
Ecosystem:Workflows, projects, some integrations; growing plugin/tool use
Privacy/Controls:Team & enterprise controls vary by tier
File support:Large docs/PDFs, images; strong long-context handling
Gemini
Model family:Gemini (various tiers)
API:Yes
Ecosystem:Google Workspace extensions, Android integration, Gemini Live
Privacy/Controls:Workspace admin controls; Google policy options
File support:Images, docs, Sheets; good mobile capture → prompt
Microsoft Copilot
Model family:Mix of frontier models (service-managed)
API:Limited
Ecosystem:Deep M365 integration (Word, Excel, Teams, Outlook)
Privacy/Controls:Tenant-level governance, audit & compliance options
File support:Office docs, enterprise files via Graph permissions
ChatGPT
Reasoning
92%
Long context
88%
Tool use
90%
Writing
92%
Coding
86%
Value
88%
Claude
Reasoning
90%
Long context
96%
Tool use
82%
Writing
90%
Coding
84%
Value
86%
Gemini
Reasoning
86%
Long context
84%
Tool use
88%
Writing
84%
Coding
80%
Value
90%
Microsoft Copilot
Reasoning
84%
Long context
82%
Tool use
86%
Writing
82%
Coding
78%
Value
92%

ChatGPT

Freemium

Editor’s ChoiceVisit ↗
Strengths
  • Balanced generalist
  • Ecosystem for tools/bots
  • Great for structured writing
Watch-outs
  • Advanced features on paid tiers
  • Always verify factual claims
Writing
92/100
Coding
86/100
Web
90/100
Value
88/100
Reddit: real user discussions

External discussions may include opinions and mixed experiences — use them as qualitative input.

Gemini

Freemium

Visit ↗
Strengths
  • Strong web integration
  • Multimodal prompts
  • Google Workspace tie-ins
Watch-outs
  • Features vary by region/plan
Writing
84/100
Coding
80/100
Web
88/100
Value
90/100
Reddit: real user discussions

External discussions may include opinions and mixed experiences — use them as qualitative input.

How we test AI assistants

We run structured tasks for writing, code generation/explanation, multi-step research with web access, and long-context document work. Scores weigh reasoning, context handling, tool-use, speed, UX, and price-to-value. Rankings are editorial and may include affiliate partnerships that never influence verdicts.

Notes: capabilities and limits vary by plan/region and change frequently — verify against the vendor’s latest documentation.

Some links may be affiliate (marked as sponsored). Using them supports our work at no extra cost to you.