● hail.so / dispatch · 2026-10-13 · compare
file: llm · 2 models

DeepSeek V4 Pro vs GPT-5.5

← All costsBuild your own
DeepSeek
DeepSeek V4 Pro
OpenAI
GPT-5.5
Output $/MTok$3.96$30.00
Input $/MTok$1.32$5.00
Cached input $/MTok$0.0440$0.5000
Context window1,048,5761,050,000
Output cap384,000128,000
Modalitiesin: text / out: textin: text, image / out: text
Tool use✓✓
Structured output✓✓
FamilyDeepSeek V4GPT-5.5
Knowledge cutoff—2025-12-01
Verified2026-10-122026-10-12
Sourceprovider page ↗provider page ↗

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