Migration assistant

Replacing GPT-4.1 Nano?

Ranked replacement candidates, each shown with exactly what changes if you switch. Same-provider matches surface first because switching cost is lower; capability regressions are flagged in red.

OP
Migrating from

GPT-4.1 Nano

OpenAI · GPT-4.1 · Active
Input: $0.1/M Output: $0.4/M Context: 1M
View detail →
#1 RECOMMENDED

GPT-4.1 Mini

OpenAI · GPT-4.1
same provider; same family; 300% more expensive input; same context window
View full detail →
What changes if you switch
Field GPT-4.1 Nano GPT-4.1 Mini Impact
Input price $0.1/M $0.4/M +300% more expensive
Output price $0.4/M $1.6/M +300% more expensive
Context window 1M tokens 1M tokens Same capacity
Vision input ✓ supported ✓ supported Preserved
Function calling ✓ supported ✓ supported Preserved
Structured output (JSON) ✓ supported ✓ supported Preserved
Lifecycle Active Active Same status
Other candidates
#2

GPT-5.5 Pro

OpenAI
same provider; 29900% more expensive input; 1.1M context (larger)
Details →
Input price: +29900% more expensiveOutput price: +44900% more expensiveContext window: Larger
#3

GPT-5 Nano

OpenAI
same provider; 50% cheaper input; smaller context (400K)
Details →
Input price: Save 50%Context window: 62% smaller
#4

Gemini 2.0 Flash

Google Gemini
1M context (larger)
Details →
Context window: Larger
#5

Gemini 2.5 Flash-Lite

Google Gemini
1M context (larger)
Details →
Context window: Larger
Methodology

How candidates are ranked

Candidates are ranked by how much of the source model's profile each one preserves — weighing switching cost (same provider or model family surface first), capability parity (what you keep versus what you'd lose), context window, and pricing direction. A candidate that is itself deprecated is pushed down the list; one that's already retired is never recommended.

Ranking is purely algorithmic — no editorial weighting, no paid placement. Every value is pulled from each provider's own documentation; click any model name to see the source-linked detail.