Compare AI models: DeepSeek V4.1 Flash vs GPT-5.5
- DeepSeek V4.1 FlashDeepSeek
- GPT-5.5OpenAI
ReasoningCodingCost efficiencyContext windowMultimodalTool use
| Model | Reasoning | Coding | Cost efficiency | Context window | Multimodal | Tool use |
|---|---|---|---|---|---|---|
| DeepSeek V4.1 Flash | 100/100 | 100/100 | 69/100 | 81/100 | 33/100 | 92/100 |
| GPT-5.5 | 76/100 | 94/100 | 5/100 | 98/100 | 50/100 | 89/100 |
Overview
Author
Context length
1M
1.1M
Reasoning
True
True
Input modalities
Text, Image
Text, Image, Pdf
Output modalities
Text
Text
Providers
Pricing
Input
$0.15/ 1M
$5.00/ 1M
Output
$0.60/ 1M
$30/ 1M
Cached input
$0.003/ 1M
$0.50/ 1M
MomentumLast 2 mo
Unique users
2.7M
0
Completed sessions
58,473,008
25
Token share
27.1%
0%
Tokens
279T+100%
00%
AUG 25OCT 19
No trend data
RetentionWeek 1
Returning users
68.5%317K user-weeks
Pending