gpt-5.2

openai/gpt-5.2

Context

400K

Input

text, image

Output

text

Tool calling

Supported

About this model

The standard 'Thinking' variant of OpenAI's GPT-5.2 model, released Dec 11, 2025. Excels at complex reasoning, coding, and multi-step projects. Optimized for professional knowledge work and serves as the balanced option between speed and capability in the GPT-5.2 family.

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Input modalities

text

Accepted as model input

image

Accepted as model input

Providers

Available routing options for this model through OneInfer.

OpenAI

Available

Input tokens

$1.750 / 1M tokens

Output tokens

$14.000 / 1M tokens

Routing

OneInfer optimized

Pricing

Current OneInfer pricing for this model.

Usage	Price
Input tokens	$1.750 / 1M tokens
Output tokens	$14.000 / 1M tokens
Cached input tokens	$0.175 / 1M tokens

Performance

Published evaluation results associated with this model.

coding

swe_bench_pro55.6

swe_bench_verified80

reasoning_and_knowledge

gdpval70.9

gpqa_diamond93.2

arc_agi_190

agentic_score

tau2_telecom98.7

API example

Refer Documentation

curl https://api.oneinfer.ai/v1/ula/chat/completions \
  -H "Authorization: Bearer $JWT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.2",
    "messages": [
      { "role": "user", "content": "Hello!" }
    ]
  }'