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GPT 5.6 Sol (Fast)

GPT-5.6 Sol is the flagship of OpenAI's GPT-5.6 series, its most capable model for long-horizon agentic work across coding, biology, and cybersecurity. Your use is subject to OpenAI's Terms & Privacy Policies.

ReasoningTool UseImplicit CachingFile InputVision (Image)Web SearchWebsockets
import { streamText } from 'ai'
const result = streamText({
model: 'openai/gpt-5.6-sol-fast',
prompt: 'Why is the sky blue?'
})
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Try out GPT 5.6 Sol (Fast) by OpenAI. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.

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GPT 5.6 Sol (Fast)

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Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.

Provider
Context
Max Output
Latency
Throughput
Input
Output
Cache
Web Search
Capabilities
ZDR
No Training
Regional Inference
Release Date
1.1M128K
3.7s
96tps
$5/M+1 more
$30/M+1 more
Read:$0.5/M+2 more
Write:$6.25/M$3.13/M+2 more
$10/K
+ input costs
+4
US
07/09/2026

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P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the docs for more info.

Copy link to headingLatency

P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds. View the docs for more info.

Copy link to headingUptime

Direct request success rate on AI Gateway and per-provider. Uptime reflects the base model. Visit the docs for more info.

Copy link to headingMore models by OpenAI

Model
Context
Latency
Throughput
Input
Output
Cache
Web Search
Capabilities
Providers
ZDR
No Training
Release Date
1.1M
1.6s
245tps
$1/M$0.20/M
Fast $0.40/M+1 more
$6/M$1.20/M
Fast $2.40/M+1 more
Read:
$0.1/M$0.02/M+1 more
Write:
$1.25/M$0.25/M+1 more
$10/K
+ input costs
+4
azure logo
bedrock logo
openai logo
07/09/2026
1.1M
1.9s
120tps
$5/M$2.50/M
Fast $5/M+1 more
$30/M$15/M
Fast $30/M+1 more
Read:
$0.5/M$0.25/M+1 more
Write:
$6.25/M$3.13/M+1 more
$10/K
+ input costs
+4
azure logo
bedrock logo
openai logo
07/09/2026
1.1M
1.1s
168tps
$2.50/M$2/M
Fast $4/M+1 more
$15/M$12/M
Fast $24/M+1 more
Read:
$0.25/M$0.2/M+1 more
Write:
$3.13/M$2.5/M+1 more
$10/K
+ input costs
+4
azure logo
bedrock logo
openai logo
07/09/2026
1.1M
0.8s
87tps
$2.50/MFast $5/M+1 more
$15/MFast $30/M+1 more
Read:
$0.25/M+1 more
Write:
$10/K
+ input costs
+4
azure logo
openai logo
03/05/2026
400K
5.1s
184tps
$0.05/M
$0.40/M
Read:$0.01/M
Write:
$14/K
+ input costs
+3
azure logo
openai logo
08/07/2025
131K
0.1s
378tps
$0.35/M
$0.75/M
Read:$0.25/M
Write:
baseten logo
bedrock logo
cerebras logo
+5
08/05/2025