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GPT-5-Codex

openai/gpt-5-codex

Coding-optimized GPT model for repository edits, reviews, and agentic software work

Input modalitiesT
Output modalitiesT
Source-linkedgpt-codexClosed weightsReleased 2025-09-15
Report data
Context window400K
Maximum output128K
Provider offers12
Knowledge cutoff2024-09-30
Capabilities

What this model supports

ReasoningYes
Tool callingYes
Structured outputYes
AttachmentsNo
Temperature controlNo
Open weightsNo
Creator
OpenAI
Family
gpt-codex
Modalities
Image, Text
License
Not documented
Release date
2025-09-15
Model ID
openai/gpt-5-codex
Market availability

Provider pricing

Report price →
Providers offering GPT-5-Codex
ProviderProvider model IDContextInput / 1MOutput / 1MCached / 1MFeaturesAll pricing
Poe logoPoeopenai/gpt-5-codex400K$1.1 if offer.cost.input is defined else '—'}}$9 if offer.cost.output is defined else '—'}}$0 if offer.cost.cache_read is defined else '—'}}R T ·
View
{
  "input": 1.1,
  "output": 9
}
Vercel AI Gateway logoVercel AI Gatewayopenai/gpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
ZenMux logoZenMuxopenai/gpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.12 if offer.cost.cache_read is defined else '—'}}R T ·
View
{
  "cache_read": 0.12,
  "input": 1.25,
  "output": 10
}
OpenRouter logoOpenRouteropenai/gpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
OpenAI logoOpenAIgpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Azure Cognitive Services logoAzure Cognitive Servicesgpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.13 if offer.cost.cache_read is defined else '—'}}R T ·
View
{
  "cache_read": 0.13,
  "input": 1.25,
  "output": 10
}
OrcaRouter logoOrcaRouteropenai/gpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Requesty logoRequestyopenai/gpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Kilo Gateway logoKilo Gatewayopenai/gpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T ·
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Abacus logoAbacusgpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Azure logoAzuregpt-5-codex400K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.13 if offer.cost.cache_read is defined else '—'}}R T ·
View
{
  "cache_read": 0.13,
  "input": 1.25,
  "output": 10
}
NanoGPT logoNanoGPTopenai/gpt-5-codex256K$9.996 if offer.cost.input is defined else '—'}}$19.992 if offer.cost.output is defined else '—'}}$0 if offer.cost.cache_read is defined else '—'}}· · ·
View
{
  "input": 9.996,
  "output": 19.992
}
Evidence

Published benchmark results

Artificial Analysis Coding Index vs top 7 models
GPT-5-Codex
38.9
Step 3.7 Flash
37.1
Step 3.5 Flash 2603
34.6
North Mini Code
33.4
Gemini 2.5 Pro
32.0
Step 3.5 Flash
31.6
GLM-4.6
29.5
Design Arena: mobileapps vs top 8 models
Anthropic: Claude Opus 4.8
1287.0
Claude Fable 5
1281.0
MiniMax: MiniMax M3
1271.0
Gemini 3.5 Flash
1259.0
Anthropic: Claude Opus 4.6
1259.0
Anthropic: Claude Sonnet 4.6
1255.0
Z.ai: GLM 5.2
1243.0
GPT-5-Codex
1129.0
SciCode vs top 7 models
Fugu
60.1
Fugu Ultra
58.7
Qwen3.7 Max
53.5
Gemini 2.5 Pro
42.8
GPT-5-Codex
40.9
Step 3.5 Flash
40.4
Step 3.7 Flash
40.0
Terminal-Bench Hard vs top 7 models
GPT-5-Codex
37.9
Step 3.7 Flash
35.6
Step 3.5 Flash 2603
32.6
Step 3.5 Flash
27.3
Gemini 2.5 Pro
26.5
GLM-4.6
25.0
GLM-4.5
22.0