OpenAI: GPT-5

OpenAI

OpenAI: GPT-5 by OpenAI costs $1.25 per 1M input tokens and $10.00 per 1M output tokens, with a 400K-token context window.

Pricing

Input (per 1M tokens)

$1.25

Output (per 1M tokens)

$10.00

Cached input (per 1M)

$0.13

Provider	Input / 1M	Output / 1M
openrouter	$1.25	$10.00
OpenAI	$1.25	$10.00

Specifications

Provider: OpenAI
Context window: 400K tokens
Parameters: —
Released: Aug 2025
Open weights: No
Frontier model: No

Benchmarks

Epoch Capabilities Index: 150.0
FrontierMath: 32.4
GPQA Diamond: 86.2
LMArena (Chatbot Arena) Elo: 1406.2
LMArena Vision Elo: 1208.2
LMArena WebDev Elo: 1417.2
SWE-bench Verified: 75.6

Speed & latency

Time to first token

4.51s

Output speed

113 tok/s

Fastest host: azure (via vercel-ai-gateway).

Compare OpenAI: GPT-5 with…

OpenAI: GPT-5 vs OpenAI: GPT-5.6 Sol Pro$10.00/1M OpenAI: GPT-5 vs OpenAI: GPT-6.1 Sol Pro$10.00/1M OpenAI: GPT-5 vs OpenAI: GPT-6.1 Sol Pro (batch)$5.00/1M OpenAI: GPT-5 vs OpenAI: GPT-6.1 Sol$10.00/1M OpenAI: GPT-5 vs OpenAI: GPT-6.1 Sol (batch)$5.00/1M OpenAI: GPT-5 vs OpenAI: GPT-6 Luna Pro$0.50/1M

FAQ

How much does OpenAI: GPT-5 cost?

OpenAI: GPT-5 is priced at $1.25 per 1M input tokens and $10.00 per 1M output tokens. Output tokens cost more than input.

What is OpenAI: GPT-5's context window?

OpenAI: GPT-5 supports a context window of 400K tokens — the maximum prompt plus response length it can handle in a single request.

Is OpenAI: GPT-5 open weight?

No — OpenAI: GPT-5 is a closed/proprietary model accessed via API.

Data as of 2026-10-14. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.