Activefastllm Proprietary

GPT-3.5

by OpenAI· Released March 2022· Cutoff September 2021

GPT-3.5 is a fast and cost-effective language model from OpenAI, optimized for conversational tasks and general-purpose text generation. It powers ChatGPT and offers a balance of performance and affordability, making it suitable for a wide range of applications. As a predecessor to GPT-4, it remains widely used for its speed and lower cost.

Official Site API Docs

Input cost

$0.50 per 1M tokens

Output cost

$1.50 per 1M tokens

Context window

16,385 tokens

Max output

4096 tokens

Modalities

text

Parameters

175B

License

proprietary

Capabilities

Text GenerationChat CompletionFunction CallingStreamingJSON ModeCode GenerationInstruction Following

Best For

Cost-effective conversational AI and text generation tasks requiring fast responses.

Strengths

Fast inference speed
Low cost per token
Strong instruction following
Reliable for chat applications
Broad language understanding

Limitations

Lower accuracy on complex reasoning compared to GPT-4
No native vision or multimodal support
Smaller context window than newer models
May produce less creative outputs

Use Cases

Customer support chatbots

Content generation and summarization

Code assistance and debugging

Language translation

Educational tutoring

Data extraction and formatting

Personal productivity assistants

Improvements Over Previous Model

Introduced as a major upgrade from GPT-3 with improved instruction following and reduced toxicity
Lower latency and cost compared to GPT-3
Enhanced chat capabilities with the chat completions API
Added function calling support
Increased context window from 4K to 16K tokens in later versions

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