gpt-5-nano-2025-08-07

reasoningdeprecatedproprietary

Status: Deprecated · Succeeded by gpt-5.6-luna

Intelligence
Reasoning
Speed
Context
400K
Max output
128K
Input price
$0.05/1M tokens
Output price
$0.4/1M tokens
Alias ofgpt-5-nano

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Provider OpenAI
Creator openai
Familygpt-5
Licenseproprietary
Statusdeprecated
Typereasoning
Input modalitiestext, image
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window400K tokens
Max input272K tokens
Max output128K tokens
Reasoning tokensYes
Knowledge cutoff
Release date
Deprecation date
Retirement date
Successorgpt-5.6-luna
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.openai.com/v1/chat/completions
ResponsesPOST
Stateful multi-turn conversationshttps://api.openai.com/v1/responses
BatchPOST
Async batch processing at lower costhttps://api.openai.com/v1/batches

Pricing

Text tokensPer 1M tokens
InputCached inputOutput
Standard$0.05$0.005$0.4

Family Comparison: gpt-5

ModelContextMax outPricing
GPT-5 nano400K128K$0.05$0.4
GPT-5 Mini400K128K$0.25$2
GPT-5-Codex400K128K$1.25$10
GPT-5400K128K$1.25$10
GPT-5 Pro400K272K$15$120

API

GET/v1/models/openai/gpt-5-nano-2025-08-07

gpt-5-nano-2025-08-07

deprecated

Status: Deprecated

alias → gpt-5-nano
Changes · 12 entries
gpt-5-nano-2025-08-07updateca7a400Nov 2, 2026, 03:02 AM
descriptionGPT-5 Nano is our fastest, cheapest version of GPT-5. It'...→Status: Deprecated
statusactive→deprecated
model_typechat→reasoning
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...→[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
deprecation_date2026-06-11
retirement_date2026-12-11
successorgpt-5.6-luna
gpt-5-nano-2025-08-07updateb2f45bfOct 29, 2026, 03:29 AM
descriptionGPT-5 Nano is our fastest, cheapest version of GPT-5. It'...→Status: Deprecated
model_typechat→reasoning
gpt-5-nano-2025-08-07update4e8b6afOct 21, 2026, 06:35 AM
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...→[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
gpt-5-nano-2025-08-07update118451aSep 24, 2026, 07:08 AM
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...→[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
deprecation_date2026-06-11
retirement_date2026-12-11
successorgpt-5.6-luna
gpt-5-nano-2025-08-07update0ed066aJul 31, 2026, 11:38 AM
statusactive→deprecated
gpt-5-nano-2025-08-07updatefa2bbbbMar 24, 2026, 05:22 AM
capabilitiesjson modeno→yes
gpt-5-nano-2025-08-07updatef43e286Mar 24, 2026, 04:45 AM
capabilitiesjson modeyes→nofine tuningnobatchyes
gpt-5-nano-2025-08-07update1cd659eMar 24, 2026, 04:19 AM
capabilitiesjson modeyes
page_urlhttps://platform.openai.com/docs/models/gpt-5-nano→https://developers.openai.com/api/docs/models/gpt-5-nano?...
gpt-5-nano-2025-08-07update2b100acMar 23, 2026, 05:30 AM
model_typereasoning→chat
licenseproprietary
release_date2025-08-07
page_urlhttps://platform.openai.com/docs/models/gpt-5-nano
open_weightno
tools["function_calling"]
gpt-5-nano-2025-08-07updateb50649fMar 21, 2026, 11:58 PM
pricingtiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
capabilitiesstreamingyesvisionyes
knowledge_cutoff2024-05
max_input_tokens272000
reasoning_tokensyes
reasoning2
taglineGPT-5 Nano is our fastest, cheapest version of GPT-5.
endpoints["chat_completions","responses","batch"]
gpt-5-nano-2025-08-07updatec9a70c5Mar 21, 2026, 08:12 AM
pricinginput$0.05output$0.4cached input$0.005batch input$0.025batch output$0.2
descriptionGPT-5 Nano is our fastest, cheapest version of GPT-5. It'...
model_typereasoning
capabilitiestool callyesstructured outputyesreasoningyes
gpt-5-nano-2025-08-07create7f5c66fMar 21, 2026, 05:16 AM