Standard Compute
Model Comparison 2026

DeepSeek V4 Flash vs GPT-5.4 Mini

DeepSeek V4 Flash
DeepSeek · Budget · Open weights
$0.18/1M · 1.0M ctx
GPT-5.4 Mini
OpenAI · Budget · Proprietary
$1.88/1M · 400K ctx

Community Vote

Pick a winner in each dimension — change your vote anytime. 1 votes cast so far.

Output Quality
Correctness and depth of what it produces
DeepSeek V4 Flash 0%100% GPT-5.4 Mini
Agentic Ability
Tool calls, instruction-following, and multi-step tasks
Speed
Tokens per second and time-to-first-token
Value for $
How much capability you get per dollar
Reliability
Consistent results — fewer refusals, loops, and format breaks

Specs & Pricing, Side by Side

Spec
DeepSeek V4 Flash
GPT-5.4 Mini
Maker
DeepSeek
OpenAI
Blended price / 1M
$0.18
$1.88
Input / output
$0.14 in · $0.28 out / 1M tokens
$0.75 in · $4.50 out / 1M tokens
Context window
1.0M
400K
Open weights
Yes
No
Tool use
Yes
Yes
Reasoning
Yes
Yes
Output Quality
8.2
8.0
Agentic Ability
8.1
8.1
Speed
9.0
9.0
Value for $
10.0
8.2
Reliability
8.9
8.7

Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).

Verdict: DeepSeek V4 Flash or GPT-5.4 Mini?

Updated 2026-08-02

Choose DeepSeek V4 Flash if you want cheap, high-volume open-weight agent steps. Choose GPT-5.4 Mini if you want high-volume, low-complexity agent steps on a budget.

In our editorial scoring, DeepSeek V4 Flash leads in 3 of five dimensions (output quality, value for $ and reliability), while GPT-5.4 Mini leads in 0. On price, DeepSeek V4 Flash runs about $0.18 per 1M tokens (blended) and is open-weight; GPT-5.4 Mini is about $1.88 and proprietary.

Across 1 community votes on this matchup, GPT-5.4 Mini currently leads in 1 of five dimensions. Cast your own vote above to move the needle.

Where DeepSeek V4 Flash falls short
  • Not for the hardest tasks
  • Quality below V4 Pro
Full DeepSeek V4 Flash breakdown →
Where GPT-5.4 Mini falls short
  • Not for hard reasoning or tricky refactors
  • Quality below the full GPT-5.4
Full GPT-5.4 Mini breakdown →

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