GPT-3.5 Turbo Instruct is OpenAI's language model with a 8K context window and up to 4K output tokens, available from 4 providers, starting at $1.50 / 1M input and $2.00 / 1M output. A GPT-3.5 Turbo variant tuned for instruction-following in completion mode, omitting chat-specific optimizations for direct prompt-response use.
Specifications
Canonical IDopenai-gpt-3-5-turbo-instruct
TypeLanguage
StatusDeprecated
CreatorOpenAIOpenAI
Providers
Context Window8K tokens
Max Output4K tokens
Input ModalitiesText
Output ModalitiesText
Release Date · 3 years ago
Knowledge Cutoff · 5 years ago
Deprecation Date

Capabilities

Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities2/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema✓
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Azure AI Foundry logo
Azure AI Foundry
openai:gpt35turboinstruct
$1.50$2.00
OpenAI logo
OpenAI
gpt-3.5-turbo-instruct
$1.50$2.00
OpenRouter logo
OpenRouter
openai/gpt-3.5-turbo-instruct
$1.50$2.00
Vercel AI Gateway logo
Vercel AI Gateway
vercel_ai_gateway/openai/gpt-3.5-turbo-instruct
$1.50$2.00

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-6.1 Sol1.1M$2.00$10.00Available
GPT-6 Sol1.1M$2.00$10.00Available
GPT-6 Luna1.1M$0.100$0.500Available
GPT-6 Astra1.1M$10.00$50.00Available
GPT-5.6 Sol1.1M$4.00$20.00Available
GPT-5.6 Terra1.1M$2.00$12.00Available
GPT-5.6 Luna1.1M$0.200$1.20Available
GPT-5.51.1M$5.00$30.00Available
GPT-5.4 Mini400K$0.750$4.50Available
GPT-5.4 Nano400K$0.200$1.25Deprecating
GPT-3.5 Turbo Instruct8K$1.50$2.00Current

Model IDs

azure/gpt-3.5-turbo-instruct-0914
azure/gpt-35-turbo-instruct
azure/gpt-35-turbo-instruct-0914
gpt-3.5-turbo-instruct
gpt-3.5-turbo-instruct-0914
openai-gpt-3-5-turbo-instruct
openai/gpt-3.5-turbo-instruct
openrouter/openai/gpt-3.5-turbo-instruct
vercel_ai_gateway/openai/gpt-3.5-turbo-instruct