GPT-5.6 Sol
Flagship GPT-5.6 model for complex professional work.
Specs
- Context
- 1.05M
- Max output
- 128K
- Input price
- $4/ 1M tokens
- Output price
- $20/ 1M tokens
- Released
- 2026-07-09
Context
- Context window
- 1.05M
- Max input
- 922K
- Max output
- 128K
Pricing · USD / 1M tokens
- Input
- $4
- Output
- $20
- Cache read
- $0.4
- Cache write
- $5
Modalities
- Input
- TextImage
- Output
- Text
API
- API types
Reasoning
- Reasoning
- Yes
- Levels
Info
- Status
- Active
- Released
- 2026-07-09
- Knowledge cutoff
- 2026-02-16
Features
- Confirmed
How to call
1 provider
openaimodel = gpt-5.6-solreasoning = reasoning.effort
chat
POSThttps://api.openai.com/v1/chat/completions
responses
POSThttps://api.openai.com/v1/responses
batch
POSThttps://api.openai.com/v1/batches
JSON
Standard format
{
"id": "gpt-5.6-sol",
"object": "model",
"created": 1783555200,
"owned_by": "openai",
"name": "GPT-5.6 Sol",
"api": {
"types": [
"chat",
"responses",
"batch"
]
},
"limits": {
"context": 1050000,
"input": 922000,
"output": 128000
},
"modalities": {
"input": [
"text",
"image"
],
"output": [
"text"
]
},
"reasoning": {
"supported": true,
"efforts": [
"none",
"low",
"medium",
"high",
"xhigh",
"max"
]
},
"pricing": {
"currency": "USD",
"unit": "1M_tokens",
"input": 4,
"output": 20,
"cache_read": 0.4,
"cache_write": 5
},
"features": [
"tools",
"structured_output",
"streaming",
"caching",
"batch"
],
"info": {
"status": "active",
"release_date": "2026-07-09",
"knowledge_cutoff": "2026-02-16",
"description": "Flagship GPT-5.6 model for complex professional work.",
"docs": "https://developers.openai.com/api/docs/models/gpt-5.6-sol",
"verified_at": "2026-10-10"
}
}Official sources
4