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GPT-5 API Price

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Input · Cache Miss
$1.25 /1M tokens
Output
$10 /1M tokens
Cache Hit Input
$0.125 /1M tokens
BillingUSD · 1M tokens
Context Window400K tokens
Max Output128K tokens
ModalitiesText / Image
Deep ThinkingSupported
Verified Date2026-10-09
Official pricing pagedevelopers.openai.com/api/docs/models/gpt-5 ↗

Source text: the note below is the model's official text, kept in its original Chinese and not translated.

页面标注 Deprecated(弃用),并推荐使用 GPT-6 Astra;快照 gpt-5-2025-08-07 亦标注 Deprecated。Input 模态为 Text, Image(图像仅输入),Output 为 Text。Batch API 价仅提及未给数值。

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Monthly Cost Estimate

30 days · no cache hits · list price

Light Load
1M Input + 0.3M Output/ day
$127.5/month
Medium Business
5M Input + 1.5M Output/ day
$637.5/month
Heavy Agent
10M Input + 3M Output/ day
$1,275/month

Free quotas, tiered pricing, batch discounts, and time-based pricing are not included; refer to official bills.

OpenAI Related Models

FAQ

How much does the GPT-5 API cost?

Input $1.25/1M tokens, output $10/1M tokens

How large is the GPT-5 context window?

400K tokens, up to 128K tokens of output. Handles long documents, multi-turn conversations and large-scale inputs.

Which input modalities does GPT-5 support?

Text / Image. Supports deep thinking / reasoning.

What is the approximate monthly cost of GPT-5?

Depends on volume: light use (1M input + 300K output per day) ≈ $127.5/month; medium (5M + 1.5M) ≈ $637.5/month; heavy agents (10M + 3M) ≈ $1,275/month. Cache hits, batch discounts and tiered pricing can lower this further.

How does GPT-5 compare with peers on value?

OpenAI GPT-5 is priced low among comparable models; compare against GPT-4o, Claude 3.5 and Gemini 2.5. See the Pricemon market table for a full comparison.

What use cases suit GPT-5?

Good for: chat systems, customer support, content generation, coding assistance, data analysis.The long context supports deep-analysis scenarios.

Does GPT-5 have a free tier?

Check OpenAI's official pricing page for the latest free quota, trial policy and tiered pricing. Policies differ by vendor and change over time.

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