How do I get started with the OpenAI API?

Sign up at platform.openai.com, create an API key, and install the Python SDK (pip install openai). The Chat Completions endpoint is the most commonly used. Start with GPT-4o-mini for cost-effective development, then upgrade to GPT-4o for production.

How much does the OpenAI API cost?

Pricing varies by model: GPT-4o-mini starts at $0.15/M input tokens, GPT-4o at $2.50/M input tokens. Most hobby projects cost $5-20/month. Batch API offers 50% discounts for non-real-time workloads.

What is function calling in the OpenAI API?

Function calling lets GPT models interact with external tools by generating structured JSON arguments for functions you define. It's the foundation for building AI agents that can search databases, call APIs, and perform actions.

What is the OpenAI Assistants API?

Assistants API provides managed threads, file handling, code execution, and retrieval. It's OpenAI's higher-level abstraction for building chatbots and agents without managing conversation state yourself. Ideal for simpler apps; power users often prefer raw Chat Completions.

How do I handle rate limits on OpenAI API?

Implement exponential backoff for retries. Use the Batch API for non-urgent workloads (50% cheaper, higher limits). Request rate limit increases via the OpenAI dashboard for production apps. Consider caching responses for repeated queries.

Can I fine-tune OpenAI models?

Yes, you can fine-tune GPT-4o-mini and GPT-3.5-turbo. Prepare JSONL training data with messages, upload via API, and start training. Fine-tuning is best for consistent formatting, specific tones, or domain adaptation—not for adding new knowledge.

What is the difference between Chat Completions and Assistants API?

Chat Completions is low-level: you manage messages, context, and tools. Assistants API is high-level: OpenAI manages threads, file storage, and tool execution. Use Completions for control and customization; Assistants for faster development.

Best OpenAI API Blogs & Articles in 2026

GPT-5.4 API streamlines data science workflows from cleaning to insight generation

thedatascientist.com Apr 10, 2026

4.50/10 Low AI-Assisted Data Science Workflows

🔧 GPT-5.4 API, OpenAI API, ChatGPT, OpenAI

Developer builds voice-controlled local AI agent that executes filesystem tasks in under two seconds

dev.to Apr 10, 2026

5.50/10 Low Voice AI Agent Development

🔧 Whisper-large-v3, GPT-4o-mini, Llama-3.1-8b-instant, Streamlit, Pydantic, Groq API, OpenAI API, Groq

AI benchmarks are being gamed — here's what scores actually mean

nanonets.com Apr 10, 2026

7.80/10 Medium AI Benchmarks and Evaluation

🔧 MMLU, MMLU-Pro, GPQA Diamond, HumanEval, SWE-bench, HealthBench, Humanity's Last Exam, Chatbot Arena

Real-time vs. batch processing: the critical architectural choice for multimodal AI systems

pub.towardsai.net Apr 10, 2026

5.50/10 Low Multimodal AI Architecture

🔧 LangChain, LangGraph, PyTorch, MobileNet, EfficientNet, DistilBERT, Azure Event Hubs, Azure Blob Storage

Master LLM tokenization to cut AI costs and optimize every prompt

cio.com Apr 10, 2026

4.50/10 Low LLM Tokenization and Cost Optimization

🔧 ChatGPT, Claude, GitHub Copilot, Codex, OpenAI, Anthropic, GitHub

Seedance 2.0 outperforms Sora 2 and Veo 3.1 with cinematic multi-asset video generation

generativeai.pub Apr 10, 2026

8.20/10 High AI Video Generation

🔧 Seedance 2.0, Pollo AI, Medium, ByteDance (Seed), OpenAI, Google, Zeniteq

Deploy sovereign vision-language AI inference on Kubernetes with full GPU observability

blog.ovhcloud.com Apr 10, 2026

5.50/10 Low LLM Infrastructure/MLOps

🔧 vLLM, Prometheus, Grafana, DCGM Exporter, NGINX Ingress, kubectl, helm, OpenAI Python SDK

PDF prompt injections are rampant—here's how to detect them structurally

dev.to Apr 10, 2026

7.20/10 Medium AI Security / Prompt Injection Detection

🔧 ChatGPT, pdf-injection-scanner, pdfplumber, TF-IDF + Logistic Regression classifier, DeBERTa (ProtectAI), TikTok, arXiv, GitHub

Open-source drag-and-drop platform lets anyone build custom multi-agent AI systems

dev.to Apr 10, 2026

5.50/10 Low Agentic AI Development Platform

🔧 SoloEngine, React Flow, FastAPI, OpenAI API, Anthropic API, Ollama, Qwen, GitHub

LLMs can jailbreak themselves with 94.7% success rate using minimal queries

arxiv.org Apr 10, 2026

8.50/10 High LLM Security / Jailbreaking

🔧 SLIP (Self-Jailbreaking via Lexical Insertion Prompting), Semantic Drift Monitor (SDM), AdvBench, HarmBench, OpenAI, Anthropic, Google, DeepSeek

AI safety filters withhold life-saving medical advice based on user identity, causing harm

arxiv.org Apr 10, 2026

8.50/10 High AI Safety Evaluation / Healthcare AI Harm

🔧 Ashton Manual (referenced clinical protocol), LLM judge (evaluation pipeline), Anthropic, Meta, OpenAI

New attack makes AI content moderators blind to harmful material with 90%+ success

arxiv.org Apr 10, 2026

8.20/10 High AI Security / Content Moderation Vulnerabilities

🔧 GPT-5, Qwen3-VL, SmuggleBench, OpenAI

Open-source web agent beats GPT-4o-powered bots at automated browser tasks

arxiv.org Apr 10, 2026

8.20/10 Medium Web Agents / Browser Automation

🔧 MolmoWeb, MolmoWebMix, GPT-4o, WebVoyager, Online-Mind2Web, DeepShop, OpenAI

9B open-weight web agent beats Claude 3.5 Sonnet using structured distillation

arxiv.org Apr 10, 2026

8.20/10 Medium AI Agents / Knowledge Distillation

🔧 Gemini 3 Pro, Claude 3.5 Sonnet, GPT-4o, WebArena, WorkArena, Google, Anthropic, OpenAI

New stealthy jailbreak attack hijacks AI mobile agents with 82.5% success rate

arxiv.org Apr 10, 2026

7.80/10 High AI Security / Adversarial Attacks on Mobile Agents

🔧 GPT-4o, HG-IDA*, OpenAI

LLMs hit a hard ceiling on hidden multi-step reasoning, even at GPT-5 scale

arxiv.org Apr 10, 2026

7.80/10 Medium LLM Reasoning Limitations and Chain-of-Thought Safety

🔧 GPT-4o, GPT-5, Qwen3-32B, OpenAI

Tempo framework lets 6B AI model outperform GPT-4o on hour-long video understanding

arxiv.org Apr 10, 2026

7.80/10 Medium Video Understanding / Multimodal AI Compression

🔧 Tempo, GPT-4o, Gemini 1.5 Pro, OpenAI, Google

New backdoor attack infiltrates AI agent systems through malicious skill components

arxiv.org Apr 10, 2026

7.50/10 Medium AI Security / Adversarial Attacks on Agent Systems

🔧 GPT-5.2-1211-Global, OpenAI

Agentic AI automates complex radiation dosimetry in PET/CT with near-perfect accuracy

arxiv.org Apr 10, 2026

7.50/10 Low Agentic AI in Medical Physics

🔧 GPT-5.2, OpenDose3D, OpenTelemetry, Model Context Protocol (MCP), OpenAI

A 1.3M-parameter model beats GPT-4o-mini at DOOM by 92,000x size advantage

arxiv.org Apr 10, 2026

7.50/10 Low Small Specialized Models vs Large Language Models

🔧 SauerkrautLM-Doom-MultiVec, ModernBERT, GPT-4o-mini, OpenAI, NVIDIA, Alibaba (Qwen)

New framework eliminates LLM output repetition in large-scale synthetic data generation

arxiv.org Apr 10, 2026

7.20/10 Medium Synthetic Data Generation

🔧 GPT-5-mini, Claude Haiku 4.5, HDBSCAN, all-MiniLM-L6-v2, OpenAI, Anthropic

LLMs lose accuracy when math problems swap cultural context, even unchanged math

arxiv.org Apr 10, 2026

7.20/10 Medium LLM Evaluation & Cultural Bias

🔧 GSM8K benchmark, Claude 3.5 Sonnet, LLaMA 3.1-8B, Mistral Saba, arXiv, Anthropic, OpenAI, Google

Comprehensive 2026 survey maps every frontier LLM, deployment protocol, and industry application

arxiv.org Apr 10, 2026

7.20/10 Medium Large Language Models Survey

🔧 DeepSeek-V3, DeepSeek-R1, DeepSeek-V3.2, DeepSeek V4, Qwen 3, Qwen 3.5, GLM-5, Kimi K2.5

VLMs contradict their own reasoning rules 60% of the time, humans don't

arxiv.org Apr 10, 2026

7.20/10 Medium Vision-Language Model Reliability and Introspective Faithfulness

🔧 GPT-4o-mini, OpenAI

Leading AI models fail spatial math reasoning, lagging humans by 35+ points

arxiv.org Apr 10, 2026

7.20/10 Low AI Benchmarking and Spatial Reasoning

🔧 GPT-5, MathSpatial-Bench, MathSpatial-Corpus, OpenAI

GPT-4o performance varies by time of day and week, not fixed

arxiv.org Apr 10, 2026

7.20/10 Medium LLM Reliability and Reproducibility

🔧 GPT-4o, OpenAI

HiCI extends LLaMA-2 to 100K token context with only 5.5% extra parameters

arxiv.org Apr 10, 2026

7.20/10 Low Long-Context Language Modeling

🔧 HiCI, LLaMA-2, OpenAI

Combining instruction refusal and structural gating slashes LLM hallucinations effectively

arxiv.org Apr 10, 2026

6.50/10 Medium Hallucination Mitigation / LLM Reliability

🔧 GPT-3.5-turbo, OpenAI

New benchmark reveals major gaps in AI smart glasses vision models

arxiv.org Apr 10, 2026

6.50/10 Low Vision Language Models / Wearable AI Benchmarking

🔧 GPT-4o, SUPERLENS, Hugging Face, OpenAI

VisCoder2 hits 82.4% pass rate across 12 programming languages for visualization coding

arxiv.org Apr 10, 2026

6.50/10 Low Visualization Coding Agents / LLM Code Generation

🔧 VisCoder2, VisCode-Multi-679K, VisPlotBench, GPT-4.1, OpenAI

Fine-tuned 8B open-source model rivals GPT-4.1 in automated test generation

arxiv.org Apr 10, 2026

6.50/10 Low LLM Fine-Tuning for Software Testing

🔧 GPT-4o, GPT-4.1, Ministral-8B, LoRA, OpenAI, Mistral AI

OpenClassGen: 324K Python classes benchmark reveals LLMs struggle with functional code generation

arxiv.org Apr 10, 2026

6.50/10 Low Code Generation Benchmarking

🔧 GPT-o4-mini, Claude-4-Sonnet, Qwen-3-Coder, CodeBERTScore, Zenodo, OpenAI, Anthropic, Qwen

LLMs extract clinical timelines from diabetes case reports with 87% accuracy

arxiv.org Apr 10, 2026

6.20/10 Low Clinical NLP / Medical AI

🔧 GPT-5, PubMed Open Access, OpenAI

New LLM methodology converts cultural heritage texts into queryable knowledge graphs

arxiv.org Apr 10, 2026

5.50/10 Low Knowledge Graph Generation / LLM-based Information Extraction

🔧 Claude Sonnet 3.7, Llama 3.3 70B, GPT-4o-mini, Wikipedia, Anthropic, Meta, OpenAI

Multi-modal AI boosts UI control detection by fusing vision and language

arxiv.org Apr 10, 2026

5.50/10 Low Computer Vision / UI Automation

🔧 YOLOv5, GPT, OpenAI

Commander-GPT uses multi-agent routing to crush sarcasm detection benchmarks

arxiv.org Apr 10, 2026

5.50/10 Low Multi-Agent LLM Orchestration / NLP Research

🔧 Commander-GPT, GPT-4o, Gemini Pro, DeepSeek-VL, multimodal BERT, OpenAI, Google, DeepSeek

Emotional tone in AI prompts boosts accuracy but increases sycophancy risk

arxiv.org Apr 10, 2026

5.50/10 Low Prompt Engineering

🔧 GPT-4o mini, OpenAI

GPT-4.1 few-shot prompting achieves best results extracting toxic habits from Spanish clinical texts

arxiv.org Apr 10, 2026

4.50/10 Low Clinical NLP / Named Entity Recognition

🔧 GPT-4.1, OpenAI

Four AI agents replace three DevOps meetings with automated, secure Terraform generation

pub.towardsai.net Apr 10, 2026

6.50/10 Medium Multi-Agent AI Systems

🔧 LangGraph, tfsec, checkov, FastMCP, Gradio, pydantic-settings, Mermaid.js, uv

Statistical clustering reveals four distinct groups among 27 AI benchmarks

lesswrong.com Apr 10, 2026

5.50/10 Low AI Benchmarks and Evaluation

🔧 SWE Bench, SWE-bench Verified, SWE-bench Bash, GPQA Diamond, SimpleQA, MMLU, FrontierMath, OTIS Mock AIME

Anthropic's most powerful AI is too dangerous to release — here's why

understandingai.org Apr 8, 2026

9.20/10 High AI Safety and Frontier Model Release Policy

🔧 Claude Mythos Preview, Claude Opus 4.6, Claude Code, OpenAI Codex, OpenAI o1, OpenAI o3, Anthropic, OpenAI

MCP tool calls are wide open — here's how to lock them down

dev.to Apr 8, 2026

8.20/10 High AI Agent Security / MCP Governance

🔧 MCP (Model Context Protocol), LangChain, AutoGen, Microsoft Presidio, spaCy, OpenTelemetry, Redis, agent_os.mcp_security

Meta's new AI reveals a 16-tool agent architecture that signals a platform war

dev.to Apr 8, 2026

7.80/10 Medium AI Agent Architecture

🔧 Muse Spark, Meta AI, Code Interpreter, Web Artifacts, Visual Grounding, Subagents, Segment Anything, Claude

Vercel AI Gateway now enforces team-wide Zero Data Retention automatically across all AI providers

vercel.com Apr 8, 2026

6.50/10 Medium AI Infrastructure & Compliance

🔧 AI Gateway, AI SDK, Chat Completions API, Responses API, Anthropic Messages API, OpenResponses API, Vercel, OpenAI

Developer ships AI invoice generator in one week using NLP parsing and OpenAI fallback

dev.to Apr 8, 2026

4.50/10 Low AI-Powered SaaS Development

🔧 gpt-4o-mini, OpenAI API, @react-pdf/renderer, Drizzle ORM, Clerk v7, Turbopack, Vercel, GitHub

RAG gives AI memory; MCP gives it hands — use both for production agents

pub.towardsai.net Apr 8, 2026

6.50/10 Medium AI Agent Architecture

🔧 RAG, MCP, FAISS, LangChain, OpenAI API, HuggingFace all-MiniLM-L6-v2, sentence-transformers, python-dotenv

Deploy a fleet of personalized AI agents on Railway with persistent memory

pub.towardsai.net Apr 8, 2026

6.50/10 Medium AI Agent Deployment Architecture

🔧 OpenClaw, Claude Sonnet, GPT, Telegram bot, Railway CLI, npm, git, curl

RSAC 2026: AI agent identity alone fails—action governance is the missing security layer

dev.to Apr 8, 2026

8.20/10 High AI Agent Security and Governance

🔧 CrowdStrike Falcon, AI Detection and Response (AIDR), Shadow SaaS and AI Agent Discovery, Copilot Studio, Salesforce Agentforce, ChatGPT Enterprise, OpenAI Enterprise GPT, Aguardic

Context engineering beats prompt length: 300 tokens outperforms 113K tokens

dev.to Apr 8, 2026

7.20/10 Medium Context Engineering for AI Coding Agents

🔧 Claude Code, Cursor, GitHub Copilot, Aider, Codeium, Continue, Windsurf, Zed

OSGym runs 1,000+ AI agent OS replicas for just $0.23/day each

marktechpost.com Apr 8, 2026

7.80/10 Medium AI Infrastructure/Computer Use Agents

🔧 OSGym, Claude Computer Use, OpenAI Operator, UI-TARS, Agent-S2, CogAgent, Qwen2.5-VL 32B, Docker

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