RSS

OpenAI

GPT-4.5

Benchmarks, price, context and versions

Direct answer: GPT-4.5 is a model from OpenAI. 68.7% on GPQA Diamond, per Epoch AI.

✓ Good for

  • Not enough data in the open sources this section uses to build this block.

✕ Not the best for

  • technical reasoning on science topics (#110 of 198 on GPQA Diamond)
  • calculation and problems with an exact answer (#127 of 186 on OTIS Mock AIME)

This block follows a rule of this section, using source data: if the model is in the top 25% of the metric, the item goes under "Good for"; if it is in the bottom half, it goes under "Not the best for". The middle band appears in neither. Price and context use OpenRouter; scores use Epoch AI or OpenRouter Benchmarks, in the latest version we checked.

Benchmarks

GPQA Diamond

?what it is
68.7%

highest score on this metric 96.4%

110º / 198 · Epoch AI, latest version we checked

OTIS Mock AIME

?
37.8%

highest score on this metric 100%

127º / 186 · Epoch AI, latest version we checked

Key specs

Origin
the US
Family
GPT provisional data
Weights?
closed
License
no data
Input US$/1M?
no data
Output US$/1M
no data
Context?
no data
Parameters
no data
Input
no data
OpenRouter usage?
no data
Downloads (30 days)?
no data
Use cases provisional data
Text
Dates in sources
  • 2025, published, per Epoch AI

Version history

Dates come from the sources: OpenRouter listing or Hugging Face repo creation, which may differ from the official launch.

FAQ

What is GPT-4.5?

GPT-4.5 is a model from OpenAI, with closed weights, used for text.

How much does GPT-4.5 cost?

No data in open sources.

What is the context window of GPT-4.5?

No data in open sources.

Is GPT-4.5 open source?

No. It is available through API only.

What is GPT-4.5's GPQA Diamond score?

68.7% on GPQA Diamond, per Epoch AI.

Is GPT-4.5 good for coding?

No data: there is no SWE-bench Verified measurement for it in open sources.

Who made GPT-4.5?

It was made by OpenAI, a lab from the US.

provisional data Questions under review: Semrush had no API balance during collection. Answers use source data only.

Models from OpenAI

See lab

Sources

  • Epoch AI, CC BY 4.0, latest version we checked.

Dates come from the sources: OpenRouter listing or Hugging Face repo creation, which may differ from the official launch. Family and version were grouped by rule from the name.