flatkey.ai Blog
Insights, product notes, and implementation guides for teams building on AI APIs.
AI Gateway Architecture
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Latest articles in Base URL and SDK Migration.
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Latest articles in Cost, Billing, and Ops.
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Latest articles in Enterprise Controls and Trust.
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Latest articles in Gateway Comparisons.
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Latest articles in Model and Modality Playbooks.
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Latest articles in Reliability and Routing.
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Fallback Routing for LLM APIs: Multimodal Agent Routing for Text, Image, Audio, and Video
A practical fallback routing playbook for multimodal AI agents that handle text, image, audio, and video API workflows.
Kimi API Pricing (October 2026): Kimi K3, K2.7 Code, and K2.6 Costs, Plus K3 API Setup
Official Kimi API prices for K3, K2.7 Code and K2.6 in October 2026, with cache and batch discounts, web search fees, recharge tiers, worked monthly budgets, and copy-paste K3 code.
Seedance API Evaluation Framework for Text-to-Video Product Teams
A repeatable framework for evaluating Seedance API quality, reliability, user experience, safety, and cost before a text-to-video product rollout.
OpenAI API Alternatives in 2026: Migration Guide
Compare OpenAI API alternatives and migrate one workload at a time with compatibility tests, usage evidence, safe fallback, and a rollback path.
LLM API Metrics That Actually Matter
A practical scorecard for measuring LLM API reliability, latency, cost, retries, fallbacks, context efficiency, and auditability.
AI API Use Cases by Funnel Stage: A Practical Guide for Teams
Map AI API use cases to awareness, evaluation, activation, conversion, retention, and operations with practical workflows and metrics.
Image Generation API Guide: Models, Costs, and Production
A production image generation API guide covering model choice, prompts, cost controls, safety handling, review queues, routing, and usage logs.
How to Use a Unified AI API in 2026
A practical 2026 workflow for implementing a unified AI API with one key, one OpenAI-compatible base URL, usage verification, fallback checks, and rollout metrics.
AI Routing API Metrics That Actually Matter
A practical operator scorecard for measuring whether an AI routing API improves reliability, fallback quality, latency, cost, and observability.
LLM Cost Calculator Use Cases by Funnel Stage
Learn which LLM cost calculator metric belongs at each funnel stage, from rough opportunity sizing to cost per accepted task, activation budgets, margin checks, and retention drift alerts.
AI Agent Pricing & LLM Cost Statistics You Need to Know in 2026
A long-form, sourced guide to AI agent pricing and LLM cost in 2026, covering spend, adoption, ROI, token economics, and the real cost of running agents in production.
Image Generation API Metrics That Actually Matter
Use practical image generation API metrics like cost per accepted image, prompt adherence, edit success, latency, retry rate, and business lift.
Unified AI API Use Cases by Funnel Stage
Map unified AI API use cases across awareness, consideration, and decision stages, and choose the right workflow for content, evaluation, and rollout.
AI Routing API Tools: Evaluation Framework for Production Teams
A practical evaluation framework for choosing AI routing API tools that can actually support production traffic, spend control, and route governance.
LLM Cost Calculator for Growth Teams: A Practical Workflow
Learn how to build an LLM cost calculator that tracks cost per accepted task, compares models fairly, and keeps growth-team experiments inside budget.
What Is AI Model Pricing and When Does It Matter?
Learn how AI model pricing works, what changes real cost, and when a gateway helps teams compare token, image, and video workloads.
Gemini API Use Cases by Funnel Stage
Map Gemini API use cases by funnel stage, from awareness to decision, and choose the right workflow for content, evaluation, and production automation.
Claude API Tools: Evaluation Framework
A production evaluation framework for Claude API tools covering compatibility, task success, reliability, cost, observability, and governance.
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