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Compare AI models: DeepSeek V4 Flash vs GPT-5 Nano

  1. DeepSeek V4 FlashDeepSeek
  2. GPT-5 NanoOpenAIHollow points use fallbacks · hover for details
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
DeepSeek V4 Flash26/10073/10084/10081/1000/1000/100
GPT-5 Nano50/100 — Reasoning supported; no comparable benchmark50/100 — No data; neutral placeholder75/10073/10033/10050/100 — Tool calling supported; no comparable benchmark
Overview
Author
Context length
1M
400K
Reasoning
True
True
Input modalities
Text
Text, Image
Output modalities
Text
Text
Providers
Pricing
Input
$0.09/ 1M
$0.05/ 1M
Output
$0.18/ 1M
$0.40/ 1M
Cached input
$0.02/ 1M
$0.005/ 1M
MomentumLast 2 mo
Unique users
1.1M
7.4K
Completed sessions
17,144,953
56,134
Token share
3.9%
0%
Tokens
52T-82%
5B+15%
SEP 12NOV 6
SEP 12NOV 6
RetentionWeek 1
Returning users
60.3%88K user-weeks
Pending

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