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GPT-4.1 vs DeepSeek V4 Pro

DeepSeek V4 Pro is cheaper on output tokens, while GPT-4.1 offers a larger context window. Choose GPT-4.1 or DeepSeek V4 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-4.1DeepSeek V4 Pro
ProviderFastRouterFastRouter
Input / 1M tokens$2.00$1.74
Output / 1M tokens$8.00$3.48
Context window1M1M
Parameters1.6T
Open weightsNoYes
ReleasedApr 2025Apr 2026

FAQ

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