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GPT-5

GPT-5 is an AI model made by OpenAI. OpenAI released it on 7 August 2025. It is deprecated. It takes text, image and returns text.

OpenAI

GPT-5 is an AI model made by OpenAI. OpenAI released it on 7 August 2025. It is deprecated. It takes text, image and returns text. Its context window is 400,000 tokens. Its longest answer is 128,000 tokens. Through the API it costs $1.25 per 1M tokens for input and $10.00 per 1M tokens for output. Its knowledge cutoff is 30 September 2024.

Released
7 August 2025 — openai.com, read 16 October 2026
Status
Deprecated — developers.openai.com, read 16 October 2026
Takes
Text, Image — developers.openai.com, read 16 October 2026
Returns
Text — developers.openai.com, read 16 October 2026
Open weights
Not confirmed: The maker's GPT-5 model page does not state whether its weights are open or closed.
Licence
Not confirmed: The maker's GPT-5 model page does not name a licence for the model.
Context window
400,000 tokens — developers.openai.com, read 16 October 2026
Longest answer
128,000 tokens — developers.openai.com, read 16 October 2026
Knowledge cutoff
30 September 2024 — developers.openai.com, read 16 October 2026
API price, input
$1.25 per 1M tokens — developers.openai.com, read 16 October 2026
API price, output
$10.00 per 1M tokens — developers.openai.com, read 16 October 2026
Where
Not confirmed: two readings disagree: api and api, app
Parameters
Not confirmed: The maker's GPT-5 model page does not publish a parameter count.
Model card
Not confirmed: two readings disagree: https://developers.openai.com/api/docs/models/gpt-5 and https://openai.com/index/gpt-5-system-card/

Benchmarks

Measured by others, not by the maker: each score with the name the measurer gives the model and the setting it ran, its day and its licence.

Arena

Arena’s leaderboard dataset (lmarena-ai/leaderboard-dataset on Hugging Face), CC BY 4.0: ratings from people’s votes between two anonymous models, as Arena publishes them. Data · CC BY 4.0

Epoch AI

Epoch AI, ‘Capabilities & benchmarking’, epoch.ai/benchmarks, CC BY 4.0: Epoch AI’s own runs and its Capabilities Index. Data · CC BY 4.0

Questions

When was GPT-5 released?

OpenAI released GPT-5 on 7 August 2025.

Is GPT-5 still available?

It is deprecated: OpenAI has announced the date it will retire it.

What is the context window of GPT-5?

The context window of GPT-5 is 400,000 tokens, as OpenAI prints it.

How much does the GPT-5 API cost?

On the standard tier, GPT-5 costs $1.25 per 1M tokens for input and $10.00 per 1M tokens for output, as OpenAI lists it.

What does GPT-5 take and return?

GPT-5 takes text, image and returns text.

What is the knowledge cutoff of GPT-5?

The knowledge cutoff of GPT-5 is 30 September 2024.

More from OpenAI

Sources

  1. GPT-5 Model | OpenAI API (read 16 October 2026)
  2. GPT-5 and the new era of work (read 16 October 2026)
  3. Deprecations | OpenAI API (read 16 October 2026)

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