Last verified 2026-03-06 (left) · 2026-03-06 (right)

GPT-5.2 Pro vs GPT-5.4 — Pricing & Capability Comparison

GPT-5.2 Pro charges $21.00 per million input tokens and $168.00 per million output tokens. GPT-5.4 comes in at $2.50 / $15.00. Context windows span 400K vs 1.1M tokens respectively.

TL;DR — Quick Comparison

✓GPT-5.4 is cheaper overall: $17.50 per 1M tokens (in+out) vs $189.00 for GPT-5.2 Pro — saves $171.50 per 1M tokens
✓Input pricing: GPT-5.2 Pro $21.00/1M vs GPT-5.4 $2.50/1M
✓Output pricing: GPT-5.2 Pro $168.00/1M vs GPT-5.4 $15.00/1M
✓Context window: GPT-5.4 offers more (1.1M vs 400K)
✓Use our calculator below to estimate costs for your specific usage pattern

Input price (per 1M)

GPT-5.2 Pro

$21.00

GPT-5.4

$2.50

GPT-5.4 leads here

Output price (per 1M)

GPT-5.2 Pro

$168.00

GPT-5.4

$15.00

GPT-5.4 leads here

Context window

GPT-5.2 Pro

400,000 tokens

GPT-5.4

1,050,000 tokens

GPT-5.4 leads here

Cached input

GPT-5.2 Pro

Not published

GPT-5.4

$0.250

GPT-5.4 leads here

Which one should you choose?

Skip the spreadsheet if you just need the practical takeaway. Use these rules when deciding between GPT-5.2 Pro and GPT-5.4.

Choose GPT-5.4 if input tokens dominate your bill

GPT-5.4 has the lower input rate, which usually matters most for chat, RAG, classification, and long-prompt workflows where prompt volume stays much larger than generated output.

Choose GPT-5.4 if you generate long answers

GPT-5.4 is cheaper on output tokens, so it tends to win for report generation, coding assistance, reasoning traces, and any workflow where completions are long.

Choose GPT-5.4 if context size is the blocker

GPT-5.4 offers the larger published context window, which is more important than small pricing differences when you need to fit large files, long chats, or multi-document prompts into one request.

Cost comparison for 10K-token workloads

Side-by-side pricing for identical workloads (10,000 total tokens per request) across different distributions.

Scenario	GPT-5.2 Pro	GPT-5.4	GPT-5.4 cached
Balanced conversation 50% input · 50% output	$0.945	$0.0875	$0.0762
Input-heavy workflow 80% input · 20% output	$0.504	$0.0500	$0.0320
Generation heavy 30% input · 70% output	$1.24	$0.112	$0.106
Cached system prompt 90% cached input · 10% fresh output	$0.357	$0.0375	$0.0172

Frequently asked questions

Which is cheaper: GPT-5.2 Pro or GPT-5.4?

GPT-5.4 is cheaper for input tokens at $2.50 per 1M tokens compared to $21.00. For output, GPT-5.4 costs $15.00 per 1M tokens versus $168.00 for GPT-5.2 Pro.

What is the cost per 1M tokens for GPT-5.2 Pro?

GPT-5.2 Pro pricing: $21.00 per 1M input tokens and $168.00 per 1M output tokens. Context window: 400,000 tokens.

What is the cost per 1M tokens for GPT-5.4?

GPT-5.4 pricing: $2.50 per 1M input tokens and $15.00 per 1M output tokens. Context window: 1,050,000 tokens.

How much does it cost per 1K tokens?

Per 1K tokens: GPT-5.2 Pro costs $0.0210 input / $0.1680 output. GPT-5.4 costs $0.0025 input / $0.0150 output. This is useful for calculating small-scale usage costs.

Which model supports a larger context window?

GPT-5.4 offers 1,050,000 tokens (1.1M) versus 400K for GPT-5.2 Pro.

What is the estimated monthly cost for typical usage?

For a typical workload of 10M input + 2M output tokens per month: GPT-5.2 Pro would cost approximately $546.00, while GPT-5.4 would cost $55.00. GPT-5.4 is more economical for this usage pattern.

Do these models support prompt caching?

GPT-5.2 Pro does not publish cached pricing. GPT-5.4 supports caching at $0.250 per 1M tokens, saving up to 90%.

Which model is best for my use case?

Choose GPT-5.4 for cost-sensitive applications with high input volume. Choose GPT-5.4 if you need 1.1M context for long documents or conversations. Consider prompt caching if you have repeated context. Use our token calculator to model your specific usage pattern.