gpt-5.5 vs deepseek-v4-pro

Highlight best

gpt-5.5

deepseek-v4-pro

Overview

Author

OpenAI

DeepSeek

Context

1.1M

1M

Input

Output

Released

Apr 24, 2026

Apr 24, 2026

Pricing

Input

$1.00

$0.75

Output

$6.00

$1.50

Performance

Latency

-

-

Throughput

-

-

Features

Max output

128K

384K

Reasoning

Tools

Vision

-

Cache

Quantization

unknown

fp8

Activity

Weekly Tokens

-

-