TokSpan Blog

6-dimension scoring of OpenRouter, LiteLLM, Portkey, and TokSpan API gateway platforms. Protocol support, caching, governance, pricing, latency, and enterprise readiness.

Build AI agents with LLM APIs. Complete Python agent: tool-calling loop, three memory types, multi-agent orchestration, and optimal model-role mapping.

Build AI-powered developer tools with LLM APIs. Code completion with FIM, pull request review, diff analysis, and model selection for coding tasks — with Python implementation.

Build a production AI customer support system with LLM APIs. 4-layer architecture, RAG knowledge base, human handoff design, cost breakdown, and the hidden costs vendors don't mention.

Cheapest LLM APIs ranked: DeepSeek V4 Flash at $0.14/M, GLM-4 Flash free. Quality benchmarks, hidden costs, free tier deep-dive, and scaling path.

When does self-hosting LLMs actually save money? Complete TCO model with GPU, DevOps labor, and utilization risk —plus the hybrid architecture that gives you the best of both.

Benchmarks and pricing across DeepSeek V4, Qwen3.7, GPT-5.5, and Claude Opus 4.8. Coding tests, multilingual quality, and cost-per-task rankings.

What the EU AI Act means for developers using LLM APIs. Risk classification, compliance checklist, transparency requirements, and 2026 enforcement timeline.

Calculate the true ROI of fine-tuning vs prompt engineering vs RAG. Cost crossover analysis at 100K, 500K, and 1M requests/month — with an interactive calculator methodology.

"Fine-tune, RAG, or prompt?" is the wrong question. A 7-axis decision framework, cost crossover analysis, and the 2026 default playbook that uses all three —with data.

Compare function calling across OpenAI, Anthropic, Google, and DeepSeek. Working code per provider, differences table, and unified multi-model wrapper.

GDPR compliance for LLM API users. 10-point checklist covering data residency, DSAR handling, DPA review, PII redaction, and API provider compliance documentation.