GPT-5.2 vs GPT-5.3 Codex

Compare OpenAI and OpenAI AI models

OpenAI

GPT-5.2

OpenAI

GPT-5.3 Codex

Try OpenAI →

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

GPT-5.2

Per Request:$0.008750

Daily:$0.875

Monthly:$26.25

Yearly:$319.375

GPT-5.3 Codex

Per Request:$0.008750

Daily:$0.875

Monthly:$26.25

Yearly:$319.375

Cost Differences

$0.00

Per Request

$0.00

Daily

$0.00

Monthly

$0.00

Yearly

GPT-5.3 Codex costs less than GPT-5.2

Feature Comparison

Feature	GPT-5.2	GPT-5.3 Codex
Provider	OpenAI	OpenAI
Input Price	$1.75/1M tokens	$1.75/1M tokens
Output Price	$14.00/1M tokens	$14.00/1M tokens
Context Window	1,000,000 tokens	256,000 tokens
Max Output	131,072 tokens	32,768 tokens
Category	flagship	coding
Capabilities	textvisionaudiocodereasoning	textcode
Release Date	12/11/2025	3/1/2026

GPT-5.2 vs GPT-5.3 Codex: Which Should You Choose?

Choosing between GPT-5.2 and GPT-5.3 Codex depends on your priorities: cost efficiency, context length, or raw capability. GPT-5.3 Codex is the more affordable option at $1.75/1M input tokens. Meanwhile, GPT-5.2 offers a significantly larger context window at 1,000,000 tokens vs 256,000 for GPT-5.3 Codex.

These models target different tiers: GPT-5.2 is a flagship model while GPT-5.3 Codex is coding. This means they're optimized for different workloads. GPT-5.2 is built for complex tasks that require deeper reasoning, while GPT-5.3 Codex offers better value for routine operations.

Output costs matter too. GPT-5.2 charges $14.00/1M output tokens vs $14.00 for GPT-5.3 Codex.

Multimodal capabilities: GPT-5.2 supports vision (image inputs) while GPT-5.3 Codex is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose GPT-5.2 when:

• You need a larger context window (1,000,000 tokens)
• You need more capabilities (vision, audio, reasoning)
• You need longer outputs (up to 131,072 tokens)
• You're already using OpenAI's API ecosystem

Choose GPT-5.3 Codex when:

• 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-5.2 (OpenAI)

Cost Calculator

Provider

Model

Input Tokens

Output Tokens

Requests/Day

Select a provider and model to see costs

GPT-5.3 Codex (OpenAI)

Cost Calculator

Provider

Model

Input Tokens

Output Tokens

Requests/Day

Select a provider and model to see costs

Start using GPT-5.2 today

Start using GPT-5.3 Codex today

Frequently Asked Questions

Which is cheaper, GPT-5.2 or GPT-5.3 Codex?▼

GPT-5.3 Codex is cheaper for input tokens at $1.75 per million tokens vs $1.75 for GPT-5.2.

What is the context window difference between GPT-5.2 and GPT-5.3 Codex?▼

GPT-5.2 supports 1,000,000 tokens while GPT-5.3 Codex supports 256,000 tokens — a difference of 744,000 tokens in favor of GPT-5.2.

Which model is better for AI Chatbot?▼

Both models support text. For ai chatbot, GPT-5.3 Codex is the lower-cost option, while GPT-5.2 offers a larger context window (1,000,000 vs 256,000 tokens). Choose GPT-5.3 Codex for budget sensitivity or GPT-5.2 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-5.2 costs about $26.25/month and GPT-5.3 Codex costs about $26.25/month. Overall, GPT-5.3 Codex has lower combined input + output rates ($1.75 in, $14.00 out) vs GPT-5.2.