GPT-5.4

OpenAI

flagship

Capabilities

VisionToolsCodeLong ContextExtended ThinkingStructured OutputComputer UseMultilingual

Strengths

Broadest capability set
Strong coding and computer use
1M context

Weaknesses

Premium pricing on output-heavy tasks

Pricing

Input / 1M tokens

$2.5

Output / 1M tokens

$15

Context window

272k

Transparency

Open weights

0.0 / 10

Open training data

0.0 / 10

Open methodology

5.0 / 10

Licence openness

3.0 / 10

Provider disclosure

4.0 / 10

FMTI company score

350.0 / 10

Composite:2.4 / 10

OpenAI FMTI 35. Publishes system cards. No training data disclosure. Score dropped from 2024.

Sustainability

Inference energy

4.0 / 10

Training footprint

N/A

Provider infrastructure

4.0 / 10

Composite:4.0 / 10

CEO stated 0.34 Wh per average ChatGPT query. Claims 100% renewable by 2027 via Microsoft Azure RECs (not direct PPAs). Zero published Scope 1/2/3 emissions as of 2026.

Task Fitness

question answering

88%

code

93%

mathematics

92%

business communication

75%

analysis

90%

extraction

90%

long-form generation

88%

research

63%

reasoning

90%

summarisation

88%

translation

85%

conversation

85%