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Compare AI models: GPT-5 Nano vs Step 5 Preview

  1. GPT-5 NanoOpenAIHollow points use fallbacks · hover for details
  2. Step 5 PreviewStepFunHollow points use fallbacks · hover for details
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
GPT-5 Nano50/100 — Reasoning supported; no comparable benchmark50/100 — No data; neutral placeholder76/10072/10033/10050/100 — Tool calling supported; no comparable benchmark
Step 5 Preview50/100 — Reasoning supported; no comparable benchmark50/100 — No data; neutral placeholder37/10081/10050/10050/100 — Tool calling supported; no comparable benchmark
Overview
Author
Context length
400K
1M
Reasoning
True
True
Input modalities
Text, Image
Text, Image, Video
Output modalities
Text
Text
Providers
Pricing
Input
$0.05/ 1M
$1.06/ 1M
Output
$0.40/ 1M
$2.86/ 1M
Cached input
$0.005/ 1M
$0.05/ 1M
MomentumLast 2 mo
Unique users
6.5K
128K
Completed sessions
40,405
2,673,996
Token share
0%
0.52%
Tokens
4.1B-25%
7.2T+100%
SEP 17NOV 11
SEP 17NOV 11
RetentionWeek 1
Returning users
Pending
59.2%2.3K user-weeks

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