GPT-4.1 nano vs o4-mini

Compare OpenAI and OpenAI AI models

OpenAI

GPT-4.1 nano

OpenAI

o4-mini

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Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

GPT-4.1 nano

Per Request:$0.000300

Daily:$0.03

Monthly:$0.90

Yearly:$10.95

o4-mini

Per Request:$0.003300

Daily:$0.33

Monthly:$9.90

Yearly:$120.45

Cost Differences

+$0.003000

Per Request

+$0.30

Daily

+$9.00

Monthly

+$109.50

Yearly

o4-mini costs more than GPT-4.1 nano

Feature Comparison

Feature	GPT-4.1 nano	o4-mini
Provider	OpenAI	OpenAI
Input Price	$0.10/1M tokens	$1.10/1M tokens
Output Price	$0.40/1M tokens	$4.40/1M tokens
Context Window	128,000 tokens	2,000,000 tokens
Max Output	8,192 tokens	131,072 tokens
Category	efficient	reasoning
Capabilities	text	textreasoningcode
Release Date	4/14/2025	4/16/2025

GPT-4.1 nano vs o4-mini: Which Should You Choose?

Choosing between GPT-4.1 nano and o4-mini depends on your priorities: cost efficiency, context length, or raw capability. GPT-4.1 nano is the more affordable option at $0.10/1M input tokens — 91% cheaper than o4-mini. Meanwhile, o4-mini offers a significantly larger context window at 2,000,000 tokens vs 128,000 for GPT-4.1 nano.

These models target different tiers: GPT-4.1 nano is a efficient model while o4-mini is reasoning. This means they're optimized for different workloads. o4-mini targets more demanding workloads, while GPT-4.1 nano provides a cost-effective option for everyday tasks.

Output costs matter too. GPT-4.1 nano charges $0.40/1M output tokens vs $4.40 for o4-mini. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-4.1 nano has the edge here at $0.40/1M output tokens.

Best Use Cases

Choose GPT-4.1 nano when:

• Budget is a primary concern
• You're already using OpenAI's API ecosystem
• You're running high-volume, latency-sensitive workloads

Choose o4-mini when:

• You need a larger context window (2,000,000 tokens)
• You need more capabilities (reasoning, code)
• You need longer outputs (up to 131,072 tokens)
• You're already using OpenAI's API ecosystem

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

GPT-4.1 nano (OpenAI)

Cost Calculator

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o4-mini (OpenAI)

Cost Calculator

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Frequently Asked Questions

Which is cheaper, GPT-4.1 nano or o4-mini?▼

GPT-4.1 nano is cheaper for input tokens at $0.10 per million tokens vs $1.10 for o4-mini — that's 91% savings on input costs.

What is the context window difference between GPT-4.1 nano and o4-mini?▼

GPT-4.1 nano supports 128,000 tokens while o4-mini supports 2,000,000 tokens — a difference of 1,872,000 tokens in favor of o4-mini.

Which model is better for AI Chatbot?▼

Both models support text. For ai chatbot, GPT-4.1 nano is the lower-cost option, while o4-mini offers a larger context window (2,000,000 vs 128,000 tokens). Choose GPT-4.1 nano for budget sensitivity or o4-mini for longer context tasks.

Which model has better overall pricing for heavy usage?▼

At 100 requests/day with 1,000 input and 500 output tokens each, GPT-4.1 nano costs about $0.90/month and o4-mini costs about $9.90/month. Overall, GPT-4.1 nano has lower combined input + output rates ($0.10 in, $0.40 out) vs o4-mini.