OpenAI & Claude
Production AI features powered by best-in-class foundation models, routed through Vercel AI Gateway.
Multi-model AI features built on OpenAI and Claude.
OpenAI and Anthropic Claude are the two foundation model families we use most often in production. We pair them with Vercel AI Gateway and AI SDK so apps can route requests across providers, fall back gracefully, and track cost per feature.
From copilots and chat to agentic workflows and document intelligence, our team designs prompts, evals, and tool use patterns that hold up under real user load — not just demo conditions.
Benefits
OpenAI and Claude Services
We help product teams ship AI features that are useful, observable, and economical to run.
Multi-model routing
Route between GPT-4.1, Claude Opus, Sonnet, and Haiku based on task, cost, and latency requirements.
Prompt engineering
System prompts, few-shot examples, and structured output schemas tuned with eval-driven workflows.
Tool use and agents
Function calling, MCP servers, and durable workflows for long-running, stateful AI interactions.
Cost and observability
Token-level tracking, prompt caching, and per-feature dashboards so AI spend stays predictable.
What we do
Our OpenAI and Claude Capabilities
We treat AI features as production software — with tests, evals, monitoring, and fallback paths for when models or APIs misbehave.
Vercel AI SDK
streamText, generateObject, and tool calling abstractions that work across providers with one codebase.
Vercel AI Gateway
Provider-agnostic routing, automatic failover, BYOK, and centralised cost tracking.
Prompt caching
Anthropic prompt caching and OpenAI cached completions for 90%+ cost reduction on repeated context.
RAG pipelines
Embedding, retrieval, and re-ranking with pgvector or dedicated vector stores.
Evaluation
Eval harnesses with Braintrust, Helicone, or custom rubrics so prompt changes are measured, not guessed.
Safety and guardrails
Input validation, output filtering, and human-in-the-loop fallbacks for sensitive workflows.
Why us
Why One X Tech for OpenAI and Claude
We have shipped AI products to production across regulated industries and consumer apps, so we know which patterns survive contact with real users.
Production AI features, not demos
Multi-provider expertise across OpenAI and Anthropic
Eval-driven prompt and model selection
Cost-aware design and prompt caching
Safety, compliance, and human oversight
Trusted by Fortune 500 brands
FAQs
Common questions about our OpenAI and Claude integration services.