OpenAI

GPT-5

CTX400K

80Quality

Reasoning · Vision · Tools

Input$1.25/M

Output$10/M

Original GPT-5 workhorse for reasoning, coding, writing, and tool workflows

PaidProprietary633/1044

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OpenAITextRare

GPT-5

Original GPT-5 workhorse for reasoning, coding, writing, and tool workflows

gpt-5

Type: Text
Quality: 80 · Top 20% on the Epoch Capabilities Index
Context window: 400,000 tokens
Max output: 128,000 tokens
Input price: $1.25 / 1M tokens
Output price: $10.00 / 1M tokens
Cache read: $0.13 / 1M tokens
Cache write: —
Released: Aug 7, 2025
Knowledge cutoff: Sep 2024
Takes in: Text, Image
Puts out: Text
Reasoning: Yes
Tool calling: Yes
Structured output: Yes
File attachments: Yes
Access: Paid
License: Proprietary
Rarity: Rare
Set number: 633/1044

Open OpenAI docs Quality 80 Where to run it 36 Evolution 7/12 Meet its creature Battle Gemini 4 Argon

Weights aren’t public. Use is governed by OpenAI’s terms. Specs from models.dev, last changed Oct 19, 2026. Official source: platform.openai.com.

How good is it?

Public leaderboard scores for GPT-5, refreshed daily from Epoch AI and LMArena.

Top 20% of the 277 models on the Epoch Capabilities Index: #57.

Quality is the share of a leaderboard’s models this one beats, from 0 to 100. Chat models are rated on Epoch AI’s Capabilities Index when it lists them, otherwise on LMArena; image and video models on LMArena’s image and video arenas.

Leaderboards

Epoch Capabilities Index#57 of 277
One number fitted from dozens of hard benchmarks, from science questions to agentic coding.150.0 index
LMArena Text#146 of 416
People compare two anonymous answers and vote for the better one.1,406 rating
Listed as gpt-5-high
LMArena Text · Coding#124 of 411
The text arena’s coding prompts only.1,436 rating
Listed as gpt-5-high
LMArena Text · Math#148 of 400
The text arena’s math prompts only.1,407 rating
Listed as gpt-5-chat
LMArena Text · Creative writing#148 of 414
The text arena’s creative writing prompts only.1,365 rating
Listed as gpt-5-chat
LMArena WebDev#86 of 145
Each model builds a web app from the same prompt; people pick the better one.1,418 rating
Listed as GPT-5 (Medium)
LMArena Vision#77 of 165
Questions about images, voted by people.1,232 rating
Listed as gpt-5-chat

Benchmarks Epoch AI runs

Scores from Epoch AI and LMArena, licensed CC BY 4.0. Boards list models under their own names, so a close match is shown with the name it was scored under. Credits

Where to run it

36 providers sell GPT-5 through an API. Prices are per million tokens, cheapest first.

CheapestOpenCode$1.07 in · $8.50 out
From the labOpenAI$1.25 in · $10.00 out

API providers

Provider	Input	Output	Context
OpenCodeCheapest paid`gpt-5`	$1.07	$8.50	400K
Poe`openai/gpt-5`	$1.10	$9.00	400K
302.AI`gpt-5`	$1.25	$10.00	400K
Abacus`gpt-5`	$1.25	$10.00	400K
AIHubMix`gpt-5`	$1.25	$10.00	400K
Azure`gpt-5`	$1.25	$10.00	400K
Azure Cognitive Services`gpt-5`	$1.25	$10.00	400K
Cloudflare AI Gateway`openai/gpt-5`	$1.25	$10.00	128K
Databricks`databricks-gpt-5`	$1.25	$10.00	400K
DevPass (LLM Gateway)`gpt-5`	$1.25	$10.00	400K

Show 26 more providers

Provider	Input	Output	Context
Eden AI`openai/gpt-5`	$1.25	$10.00	400K
FastRouter`openai/gpt-5`	$1.25	$10.00	400K
Helicone`gpt-5`	$1.25	$10.00	400K
Impossibl`openai/gpt-5`	$1.25	$10.00	400K
Kilo Gateway`openai/gpt-5`	$1.25	$10.00	400K
LLM Gateway`azure/gpt-5`	$1.25	$10.00	400K
LowRouter`auto/openai/gpt-5`	$1.25	$10.00	400K
Merge Gateway`openai/gpt-5`	$1.25	$10.00	400K
NanoGPT`openai/gpt-5`	$1.25	$10.00	400K
NEAR AI Cloud`openai/gpt-5`	$1.25	$10.00	400K
Neon`gpt-5`	$1.25	$10.00	400K
Ofox`openai/gpt-5`	$1.25	$10.00	400K
OpenAIOfficial`gpt-5`	$1.25	$10.00	400K
OpenRouter`openai/gpt-5`	$1.25	$10.00	400K
OrcaRouter`openai/gpt-5`	$1.25	$10.00	400K
Prime Inference`openai/gpt-5`	$1.25	$10.00	400K
SAP AI Core`gpt-5`	$1.25	$10.00	400K
Vercel AI Gateway`openai/gpt-5`	$1.25	$10.00	400K
ZenMux`openai/gpt-5`	$1.25	$10.00	400K
Cortecs`gpt-5`	$1.38	$10.96	400K
Requesty`gpt-5@eu`	$1.38	$11.00	400K
AI/ML API`openai/gpt-5`	$1.63	$13.00	400K
AnyAPI`openai/gpt-5`	—	—	400K
Model Oracle AI`gpt-5`	—	—	400K
Qiniu`openai/gpt-5`	—	—	400K
Snowflake Cortex`openai-gpt-5`	—	—	272K

From models.dev and Hugging Face, checked daily. Resellers’ listings can lag behind their price pages, so confirm with the provider before you commit.

Face off

Current text models from other labs at a similar output price.

GPT-5

GPT-5

How good is it?

Leaderboards

Benchmarks Epoch AI runs

Where to run it

API providers

Face off

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