⚡ EfficientBudget-Friendly
Codex Mini
by OpenAI
Efficient coding-optimized model powering the OpenAI Codex app
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
Capabilities
textcodereasoning
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Monthly Cost Estimates
| Usage Level | Daily Tokens | Daily | Monthly | Yearly |
|---|---|---|---|---|
| Light~50 requests/day | 100K in / 20K out | $0.27 | $8.10 | $99 |
| Medium~200 requests/day | 500K in / 100K out | $1.35 | $40.50 | $493 |
| Heavy~1K requests/day | 2,000K in / 500K out | $6.00 | $180.00 | $2190 |
| Enterprise~5K requests/day | 10,000K in / 2,000K out | $27.00 | $810.00 | $9855 |
Cost Calculator
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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
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