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GPT-4 Turbo

Deprecated

gpt-4-turbo, including the gpt-4-turbo-2024-04-09 snapshot and the gpt-4-turbo-completions alias, shuts down 2026-10-23 and OpenAI names gpt-5.6-sol as the replacement. Signal used: OpenAI's own deprecations page, section '2026-04-22: Legacy GPT model snapshots', which states the shutdown date and the recommended replacement as columns of a table. Rates read the same day from developers.openai.com/api/docs/pricing (Standard tier), which still prices deprecated models. Standard-tier rates, listed against the dated snapshot: input $10.00, output $30.00 per 1M, with no cached-input rate published. Specs are from developers.openai.com/api/docs/models/gpt-4-turbo: 128,000 context window, 4,096 max output tokens, knowledge cutoff Dec 01, 2023, text and image in, text out. released carries the date embedded in the snapshot id. The gpt-4-turbo-preview line and its gpt-4-0125-preview snapshot are a separate, earlier deprecation on the same page with a shutdown date of 2026-03-26 and are not carried here. THE DELAY IS OURS, NOT A PROVIDER EVENT: the announcement, the date and the replacement are all OpenAI's, published 2026-04-22; this catalog simply never carried the row. It was added 2026-09-21, 32 days before the shutdown.

GPT-4 Turbo by OpenAI costs $10 per 1M input tokens and $30 per 1M output tokens ($15/1M blended), with a 128K (128.000-token) context window. It is deprecated, shutting down 23 Oct 2026; the recommended replacement is GPT-5.6 Sol.

Last verified: 26 Sep 2026 · sourced from official provider documentation

Retires on 23 Oct 2026 · deprecated since 22 Apr 2026

Lifecycle warning

This model is deprecated. Recommended migration: GPT-5.6 Sol.

Read the GPT-4 Turbo migration guide → replacement & cheapest alternatives

Provider
OpenAI
Status
Deprecated
Input price
$10 / 1M tokens
Output price
$30 / 1M tokens
Cached input
—
Blended price
$15 / 1M tokens
Context window
128.000 tokens (128K)
Max output
4096 tokens
Modality
text, image
Open weights
No — API only
Knowledge cutoff
2023-12-01
Released
9 Apr 2024
API string
gpt-4-turbo-2024-04-09

Source: OpenAI official documentation ↗

See also

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FAQ

GPT-4 Turbo — questions & answers

How much does GPT-4 Turbo cost?

GPT-4 Turbo is priced at $10 per 1M input tokens and $30 per 1M output tokens ($15/1M blended at a 3:1 input-to-output ratio).

What is the context window of GPT-4 Turbo?

GPT-4 Turbo has a 128.000-token context window (128K), with up to 4096 output tokens per request.

Is GPT-4 Turbo being deprecated or retired?

GPT-4 Turbo is deprecated. Its scheduled shutdown date is 23 Oct 2026. The recommended migration is GPT-5.6 Sol.

Does GPT-4 Turbo support image or vision input?

Yes — GPT-4 Turbo accepts image input. Listed modalities: text, image.

Can I self-host GPT-4 Turbo?

No — GPT-4 Turbo is proprietary. Its weights are not publicly released, so it is available only through OpenAI's API (or hosted partners), not for self-hosting.

What is the API model string for GPT-4 Turbo?

The API model identifier for GPT-4 Turbo is "gpt-4-turbo-2024-04-09" when calling OpenAI's API.

What is GPT-4 Turbo's knowledge cutoff?

GPT-4 Turbo's training knowledge cutoff is 1 Dec 2023.