Codex Mini vs GPT-4.1 mini

Compare OpenAI and OpenAI AI models

OpenAI

Codex Mini

OpenAI

GPT-4.1 mini

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

Codex Mini

Per Request:$0.004500

Daily:$0.45

Monthly:$13.50

Yearly:$164.25

GPT-4.1 mini

Per Request:$0.001200

Daily:$0.12

Monthly:$3.60

Yearly:$43.80

Cost Differences

$0.003300

Per Request

$0.33

Daily

$9.90

Monthly

$120.45

Yearly

GPT-4.1 mini costs less than Codex Mini

Feature Comparison

Feature	Codex Mini	GPT-4.1 mini
Provider	OpenAI	OpenAI
Input Price	$1.50/1M tokens	$0.40/1M tokens
Output Price	$6.00/1M tokens	$1.60/1M tokens
Context Window	200,000 tokens	200,000 tokens
Max Output	32,768 tokens	16,384 tokens
Category	efficient	efficient
Capabilities	textcodereasoning	textvisioncode
Release Date	2/2/2026	4/14/2025

Codex Mini vs GPT-4.1 mini: Which Should You Choose?

Choosing between Codex Mini and GPT-4.1 mini depends on your priorities: cost efficiency, context length, or raw capability. GPT-4.1 mini is the more affordable option at $0.40/1M input tokens — 73% cheaper than Codex Mini.

Both models are in the efficient category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: GPT-4.1 mini would save you roughly $990.00/month compared to Codex Mini. For startups and indie developers, that difference can be significant.

Output costs matter too. Codex Mini charges $6.00/1M output tokens vs $1.60 for GPT-4.1 mini. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-4.1 mini has the edge here at $1.60/1M output tokens.

Multimodal capabilities: GPT-4.1 mini supports vision (image inputs) while Codex Mini is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose Codex Mini when:

• You need longer outputs (up to 32,768 tokens)
• You're already using OpenAI's API ecosystem
• You're running high-volume, latency-sensitive workloads

Choose GPT-4.1 mini when:

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

Try Different Scenarios

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

Codex Mini (OpenAI)

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GPT-4.1 mini (OpenAI)

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Frequently Asked Questions

Which is cheaper, Codex Mini or GPT-4.1 mini?▼

GPT-4.1 mini is cheaper for input tokens at $0.40 per million tokens vs $1.50 for Codex Mini — that's 73% savings on input costs.

What is the context window difference between Codex Mini and GPT-4.1 mini?▼

Codex Mini supports 200,000 tokens while GPT-4.1 mini supports 200,000 tokens — a difference of 0 tokens in favor of Codex Mini.

Which model is better for AI Chatbot?▼

Both models support text. For ai chatbot, GPT-4.1 mini is the lower-cost option, while Codex Mini offers a larger context window (200,000 vs 200,000 tokens). Choose GPT-4.1 mini for budget sensitivity or Codex 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, Codex Mini costs about $13.50/month and GPT-4.1 mini costs about $3.60/month. Overall, GPT-4.1 mini has lower combined input + output rates ($0.40 in, $1.60 out) vs Codex Mini.