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ChatGPT vs DeepSeek

Compare ChatGPT vs DeepSeek: pricing, context window, benchmarks (coding, math, reasoning), capabilities. Updated April 2026.

Updated April 2026

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ChatGPT
OpenAI · GPT-5.2
chatgpt.com ↗
DeepSeek
DeepSeek · DeepSeek V3
chat.deepseek.com ↗
Pricing
Free tier
Limited GPT-5 mini, ~10 GPT-5 messages/day
Fully free in the consumer app
Standard plan
Plus — $20/mo
API only — API only
Top plan
Pro — $200/mo
API only — API only
API input / 1M tokens
$5.00
$0.27 Best
API output / 1M tokens
$15.00
$1.10 Best
Capability
Context window
256K Best
128K
Max output tokens
16K Best
8K
Knowledge cutoff
2026-01
2026-01
Benchmarks
Coding (LiveCodeBench)
72% Best
70%
Math (AIME 2025)
84% Best
72%
Reasoning (GPQA Diamond)
79% Best
73%
Human pref. (LMArena Elo)
1410 Best
1356
Features
Image input
Partial
Voice mode
Web search
File upload
Partial
Image generation
Code execution
Partial
Agent / tool use
Persistent memory
ChatGPT

Best all-rounder. Strongest agent tooling (custom GPTs, code interpreter, browse).

DeepSeek

Open weights. ~20× cheaper API than GPT-5.2. Chinese hosting raises data-residency considerations for some.

Or skip the choice

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