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GPT-5.4 (OpenAI) vs DeepSeek V4 Pro (reka-ai)

DeepSeek V4 Pro (reka-ai) is cheaper on output tokens, while GPT-5.4 (OpenAI) offers a larger context window. Choose GPT-5.4 (OpenAI) or DeepSeek V4 Pro (reka-ai) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-5.4 (OpenAI)DeepSeek V4 Pro (reka-ai)
ProviderLLM GatewayLLM Gateway
Input / 1M tokens$2.50$1.20
Output / 1M tokens$15.00$3.30
Context window1.1M1M
Parameters——
Open weightsNoYes
ReleasedMar 2026Apr 2026

FAQ

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