What is the difference between GPT-4 and GPT-3.5?

GPT-4: more capable, better reasoning, multimodal (vision), more expensive. GPT-3.5: faster, cheaper, good for simpler tasks. GPT-4o: balanced capability and cost. Choose based on task complexity and budget.

How does OpenAI pricing work?

Pay per token (roughly 4 characters). Input and output priced separately. Varies by model: GPT-4 costs more than GPT-3.5. Embeddings and audio priced differently. Monitor usage carefully.

What is the Assistants API?

Higher-level API for building AI assistants. Handles: conversation memory, file retrieval, code execution, function calling. Stateful - maintains context across messages. Easier than managing chat history yourself.

Can I fine-tune OpenAI models?

Yes, for GPT-3.5 Turbo and GPT-4o mini. Upload training data (prompt/completion pairs), train custom version. Useful for specific tasks, tone, or domain knowledge. Costs more per token than base models.

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OpenAI Platform

The API and developer platform from OpenAI providing access to GPT models, DALL-E, Whisper, and embedding models for building AI applications.

In-Depth Explanation

The OpenAI Platform is a comprehensive developer platform offering API access to OpenAI's AI models including GPT-4, GPT-3.5, DALL-E, Whisper, and text embeddings. It enables developers to integrate advanced AI capabilities into applications.

Platform components:

Chat Completions API: GPT model access
Assistants API: Stateful AI assistants
Images API: DALL-E image generation
Audio API: Whisper transcription, TTS
Embeddings API: Text vectors
Fine-tuning: Custom model training

Key features:

Pay-per-token pricing
Multiple model tiers
Function calling
JSON mode
Streaming responses
Rate limiting and quotas

Developer tools:

Playground for testing
Usage dashboard
API keys management
Organisation controls
Safety and moderation

Business Context

OpenAI Platform is the most widely adopted LLM API, offering a balance of capability, ease of use, and cost for building AI features.

How Clever Ops Uses This

We integrate OpenAI APIs into Australian business workflows, leveraging GPT models for automation, analysis, and customer-facing AI features.

Example Use Case

"Building a customer service chatbot using the Assistants API with function calling to look up orders, process returns, and escalate to humans when needed."