Is OpenAI GPT-5.3 Chat (latest) deprecated?

What kind of model is this?

Tags describe what GPT-5.3 Chat (latest) takes in, what it is built for and how you can get it. Modality, access and language tags follow OpenAI's own documentation; tier and use-case tags are our reading of the line-up.

Modality

• Text
• Vision

Use case

• Chat

Tier

• Mid-tier

Access

• Hosted API

Specifications

Input price

unknown

Output price

unknown

Price band

unknown

Context window

unknown

Max output

16.4K tokens

Input

Text, image

Output

Text

Knowledge cutoff

August 2025

Tool use

Yes

Structured output

Yes

Weights licence

not published

Model maker

OpenAI

“unknown” means the figure has not been published, or we have not verified it yet — never that the answer is no. “not published” under the weights licence means this model is not offered with downloadable weights. The price band is ours: it bands the blended price (three parts input to one part output) as budget (≤ $0.50), standard (≤ $3), premium (≤ $12) or flagship.

Lifecycle

1. Released unknown
2. Deprecated 8 May 2026
3. Retired 10 August 2026

What is it good for?

No editorial profile for this model yet. The specifications above come from OpenAI's own documentation and the suggestions below are derived from the data — shared tags, tier and price band — not written by hand.

What to use instead of GPT-5.3 Chat (latest)

• Chat Latest Derived

  OpenAI ● Active

  Same provider, same tier (mid-tier); shares chat.

  $5.00 in · $30.00 out / M tokens · 400K context

• GPT-5.1 Derived

  OpenAI ● Active

  Same provider, same tier (mid-tier); shares chat.

  $1.25 in · $10.00 out / M tokens · 400K context

• GPT-5.2 Derived

  OpenAI ● Active

  Same provider, same tier (mid-tier); shares chat.

  $1.75 in · $14.00 out / M tokens · 400K context

• GPT-5.4 Derived

  OpenAI ● Active

  Same provider, same tier (mid-tier); shares chat.

  $2.50 in · $15.00 out / M tokens · 1.1M context

• Amazon Nova Pro Derived

  Amazon Bedrock ● Active

  Alternative from Amazon Bedrock, same tier (mid-tier); shares chat.

  $0.80 in · $3.20 out / M tokens · 300K context

Derived suggestions are ranked from the data — shared tags, the same tier and a comparable price band — not from benchmark scores. Check the capability fit yourself: we track lifecycle, price and specifications.

Sources

• developers.openai.com ↗ https://developers.openai.com/api/docs/models/gpt-5.3-chat-latest
• developers.openai.com ↗ https://developers.openai.com/api/docs/deprecations

Verified against the source on 10 September 2026. Dataset snapshot 10 September 2026. Providers can change a date without notice — the link above is always the final word.