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Helicone

OpenAI: GPT-5 Pro API

Helicone
About

Process massive datasets with OpenAI: GPT-5 Pro, featuring an expansive 128K context window for long-document analysis. This model delivers cost-effective pricing at $15.00/1M input and $120.00/1M output tokens. Access OpenAI: GPT-5 Pro via the Helicone API with up to 33K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
No
Structured Output
No
Tool Use
No
WeightsClosed
Temperature
Fixed
Attachment
Not Supported
Limits
Context Window
128K

Tokens

Input Limit
128K

Tokens

Max Output
33K

Tokens

Pricing

Standard (per 1M tokens)

Input
$15.00
Output
$120.00
Frequently Asked Questions

OpenAI: GPT-5 Pro by Helicone costs $15.00 per 1M input tokens and $120.00 per 1M output tokens.

Model Details
ID
gpt-5-pro
Provider
Helicone
Family
gpt-pro
Release Date
Jan 1, 2025
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
HELICONE_API_KEY
API Base URL
https://ai-gateway.helicone.ai/v1
Documentation