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⚡ EfficientBudget-Friendly

Codex Mini

by OpenAI

Efficient coding-optimized model powering the OpenAI Codex app

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Input Price

$1.5

per 1M tokens

Output Price

$6

per 1M tokens

Context Window

200K

tokens (32.768K max output)

Specifications

Release Date2026-02-02
Category⚡ Efficient
Context Window200,000 tokens
Max Output32,768 tokens
ProviderOpenAI
Input Cost$1.5 / 1M tokens
Output Cost$6 / 1M tokens
Price TierBudget-Friendly

Capabilities

textcodereasoning

Related Use Cases

🤖

AI Agent / Agentic Workflows

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AI Chatbot

Calculate the API cost of running a customer support or conversational AI chatbot.

~2,000 in · ~500 out
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Document Summarizer

Calculate how much it costs to summarize documents, reports, and articles with AI.

~8,000 in · ~1,000 out
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AI Code Assistant

Calculate the cost of building an AI-powered coding assistant or copilot.

~4,000 in · ~2,000 out
✍️

Content Generation

Calculate the cost of generating blog posts, marketing copy, and articles with AI.

~1,500 in · ~3,000 out
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Data Extraction

Calculate the cost of extracting structured data from unstructured text with AI.

~3,000 in · ~1,500 out

Monthly Cost Estimates

Usage LevelDaily TokensDailyMonthlyYearly
Light~50 requests/day100K in / 20K out$0.27$8.10$99
Medium~200 requests/day500K in / 100K out$1.35$40.50$493
Heavy~1K requests/day2,000K in / 500K out$6.00$180.00$2190
Enterprise~5K requests/day10,000K in / 2,000K out$27.00$810.00$9855

Cost Calculator

Alternatives to Codex Mini

💰 Cheaper Options

Llama 3.1 405BMeta (via Together AI)
7% cheaper
$3.5/M in · $3.5/M out
Magistral MediumMistral AI
7% cheaper
$2/M in · $5/M out
GPT-5.6 LunaOpenAI
7% cheaper
$1/M in · $6/M out
Claude Haiku 4.5Anthropic
20% cheaper
$1/M in · $5/M out

🚀 More Powerful

Grok 4.7xAI
7% more
$2/M in · $6/M out
Grok 4.6xAI
7% more
$2/M in · $6/M out
Grok 4.5xAI
7% more
$2/M in · $6/M out
Gemini 3.6 FlashGoogle
20% more
$1.5/M in · $7.5/M out

Frequently Asked Questions

How much does Codex Mini API cost per million tokens?▼
Codex Mini costs $1.5 per million input tokens and $6 per million output tokens as of 2026. These are the standard API rates from OpenAI.
What is the Codex Mini context window?▼
Codex Mini supports a 200K context window (200,000 tokens), which means you can process up to 200K tokens in a single API call.
How much does Codex Mini cost per month?▼
At medium usage (~200 requests/day with 500K input and 100K output tokens/day), Codex Mini costs approximately $40.50/month. Light usage runs about $8.10/month, and heavy usage (~1K requests/day) around $180.00/month.
Is there a cheaper alternative to Codex Mini?▼
Yes — Llama 3.1 405B by Meta (via Together AI) is a cheaper option at $3.5/M input tokens vs $1.5/M for Codex Mini. Other budget alternatives include models in the efficient tier.
Is Codex Mini good for ai agent / agentic workflows?▼
Codex Mini is a efficient model with support for text, code, reasoning. For ai agent / agentic workflows, it offers 200K context and costs $1.5/M input tokens — a budget-friendly choice for this use case.

Codex Mini Comparisons

codex mini latest vs gpt 6 astracodex mini latest vs o4 mini deep researchcodex mini latest vs o3 deep researchcodex mini latest vs gpt 5 2codex mini latest vs gpt 5 2 procodex mini latest vs gpt 5 6 solcodex mini latest vs gpt 5 6 terracodex mini latest vs gpt 5 6 luna

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