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OpenAI: GPT-5.4 Mini vs DeepSeek: DeepSeek V4 Flash

Side-by-side benchmark comparison based on independent public data. Scores, pricing, context, and task breakdown.

▸ verdict
OpenAI: GPT-5.4 Mini
84.1
higher score
vs
DeepSeek: DeepSeek V4 Flash
80.5
OpenAI: GPT-5.4 Mini leads with a higher composite benchmark score. It's the stronger choice for general-purpose tasks based on public benchmark data.
▸ score breakdown
TaskOpenAI: GPT-5.4 MiniDeepSeek: DeepSeek V4 FlashΔ
Overall84.180.5+3.6
Coding
Reasoning
Math
Writing
JSON
▸ specs & pricing
AttributeOpenAI: GPT-5.4 MiniDeepSeek: DeepSeek V4 Flash
ProviderOpenaiDeepseek
Context window400K1M
Input $/M tokens$0.75/M$0.09/M
Output $/M tokens$4.50/M$0.18/M
Weightsproprietaryproprietary
▸ frequently asked

Is OpenAI: GPT-5.4 Mini better than DeepSeek: DeepSeek V4 Flash?

OpenAI: GPT-5.4 Mini scores higher overall (84.1 vs 80.5) in the benchmark composite. The best choice depends on the specific use case and budget.

Which is cheaper: OpenAI: GPT-5.4 Mini or DeepSeek: DeepSeek V4 Flash?

DeepSeek: DeepSeek V4 Flash is cheaper at $0.09/M input tokens vs $0.75/M for OpenAI: GPT-5.4 Mini.

Which model is better for coding?

Both models perform similarly on coding benchmarks (SWE-Bench, Aider Polyglot, LiveCodeBench).