Integrate and compare LLM APIs
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NixAPI is an LLM relay for developers supporting OpenAI, Claude, Gemini, DeepSeek, Qwen, and Grok. This blog helps developers compare models, integrate APIs, optimize costs, and ship production features faster.
Low-latency Relay
Global acceleration nodes, avg. response < 1s, 99.9% uptime SLA.
OpenAI Compatible
Fully compatible OpenAI API — swap your base_url and you're done.
All-in-one Model Access
Access OpenAI, Claude, Gemini, DeepSeek, Qwen, and Grok through one API key and one integration path.
Top up ¥1 = $1
Pay as you go with no monthly fee and predictable pricing for teams, solo devs, and products.
Latest Articles
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OpenAI GPT-6 Cyber: What Its Controlled Release Means for Security APIs
Released 2026-11-05, GPT-6 Cyber is OpenAI's first cybersecurity model rated Critical under its safety framework. This guide explains the Daybreak Blue/Red access tiers, IP allowlisting, guardrail benchmarks, and what controlled release means for enterprise API integration.
Connect DeepSeek Harness to NixAPI: Custom Model API Setup
Install DeepSeek Harness, add NixAPI as a custom OpenAI-compatible provider, and verify chat and workspace tool calls.
Connect Kilo CLI to NixAPI: Global Config and Custom Models
Configure NixAPI in Kilo CLI's global kilo.json, load a key from the environment, and verify model discovery and file-reading tools.
Connect Pi Coding Agent to NixAPI with models.json
Install the current Pi package, configure a custom OpenAI-compatible provider and environment-based key, then verify chat and file-reading tools.
OpenAI textGrain API Complete Guide: How to Watermark LLM Output (2026)
OpenAI opened the textGrain text-watermark switch to API users on 2026-10-05. This guide explains Organization/Project-level configuration, API call changes, detection methods, and the top 5 pitfalls developers should avoid.
Gemini 3.8 Flash Onboarding: New Interactions API Mode, 1,048,576 Context Window, and the 9-Item Migration Checklist
Google released Gemini 3.8 Flash on September 22, 2026. The model ID is gemini-3.8-flash, with native 1,048,576 token context, 65,536 token output, and tunable thinking level (low/medium/high). Google simultaneously elevated the new Interactions API as the recommended primary path (server-side state via previous_interaction_id + steps timeline), while keeping generateContent as legacy. This article covers model specs, intro pricing ($0.75/$3.75 through Dec 31, 2026), the two API shapes, the 9-item migration list (including required call_id/name fields and thought-signature preservation), code examples, and the NixAPI integration strategy.