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GPT-5.3 Codex vs DeepSeek v4 Pro

DeepSeek v4 Pro is cheaper on output tokens, while GPT-5.3 Codex offers a larger context window. Choose GPT-5.3 Codex or DeepSeek v4 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-5.3 CodexDeepSeek v4 Pro
ProviderFrogBotFrogBot
Input / 1M tokens$1.75$1.74
Output / 1M tokens$14.00$3.48
Context window400K128K
Parameters1.6T
Open weightsNoNo
ReleasedFeb 2026Apr 2026

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.