Discover insights on modern routing solutions and API performance optimization. Your go-to resource for building lightning-fast applications with best practices and real-world implementations.
Anthropic went down. We ran 150 live requests through FastRouter anyway. All 150 succeeded. Here's what happened.
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Anthropic went down. We ran 150 live requests through FastRouter anyway. All 150 succeeded. Here's what happened.
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See which of your traffic qualifies for Flex tier pricing, and exactly how much it saves. Same model, same output, lower bill.
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FastRouter Blend sends one prompt to multiple models, then a judge model compares where they agree, disagree, and what each one missed
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Gemini 3.7 Flash is now available on FastRouter. Multimodal, 1M token context, $1.50/1M blended price, zero markup, no new integration required.
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Most teams do not start an AI roadmap with optimized inference spend at the top of the list. They start with a deadline.
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Kimi K3, Moonshot AI's flagship reasoning model, is now on FastRouter. 1M token context, #2 Intelligence, one endpoint.
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Prompt Compression cuts token usage before requests reach the model, no rewriting needed, no risk of breaking your production requests.
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Add an MCP server in two inputs instead of seven. Templates handle GitHub, Slack, and Jira setup while keeping full credential vaulting and audit logs
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What engineers building with LLMs are actually struggling with, from single-provider risk to token leaderboards to prompt caching nobody configured.
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GPT-5.6 Luna, Terra, and Sol are now available on FastRouter. Three tiers, one endpoint, from high volume workhorse to flagship reasoning.
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Grok 4.5 is now available on FastRouter. xAI's Opus-class model for coding and agentic workflows, priced for large, tool-heavy sessions.
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Prompt Hub lets teams write, version, and optimise prompts outside the codebase.
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Ask the FastRouter Playground to build an app or game and it renders the result instantly — interactive, no code required.
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FastRouter Playground lets you run one prompt across multiple models and see the outputs side by side.
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Amazon shut down a token leaderboard. Uber burned through its AI budget in a quarter. This is not an AI hype problem — it is what happens when usage scales without governance
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AI Spend Management: What Engineering Leaders Need to Get Right in 2026
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Stop deploying code just to update a prompt. FastRouter Prompt Library gives you versioning, instant rollback, and GEPA optimization.
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Sticky routing pins each conversation to one provider endpoint so your prompt cache stays warm. Here is how FastRouter handles it automatically.
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Prompt caching can cut repeated context costs by up to 90%. Here is how it works across major providers and why most teams are not using it yet
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We fine-tuned Gemma 3 4B on 3,000 synthetic browser trajectories and benchmarked it against GPT-5.1, Claude 4.5 Sonnet, and six other models.
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5 practical levers engineering teams are using to reduce LLM spend right now — model routing, prompt caching, Flex Processing, and Batch
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How I Cut My LLM Bill 79% in 15 Minutes Without Changing Application Code
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Enterprise AI spend is past the adoption phase. Here is what the first wave of LLM investment is teaching engineering leaders about cost accountability.
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Under the Hood: Building a Hybrid AI Agent with FastRouter BYOK | Fastrouter Blog
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Stop routing every agent task to a frontier model. The Architect-Editor pipeline cuts costs 55% by matching model capability to task complexity.
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Stop guessing at prompt quality. GEPA evolves your system prompts automatically — real production data, multi-metric scoring, full iteration audit.
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Route your own provider credentials and fine-tuned models through FastRouter — unified observability, fallback chains, and governance included.
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Add fine-tuned and custom model endpoints to FastRouter. Route them like any standard model — with full observability, cost tracking, and governance.
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Cut LLM costs on repeated context with Prompt Caching on FastRouter. Automatic for OpenAI, DeepSeek, and Gemini. One field for Anthropic Claude.
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Cut batch processing costs ~50% by appending :flex to your model ID. No code refactors, no migration — just cheaper inference.
Compare FastRouter and OpenRouter on pricing, routing, evals, governance, and latency. Side-by-side matrix, benchmarks, and a decision guide.
Helicone is in maintenance mode after Mintlify acquired it. Compare features, plan a migration, and see three paths off Helicone Cloud.
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FastRouter now supports AI video evaluation with LLM-as-judge scoring. Automate quality checks on Veo, Sora, and Kling — no manual review.
FastRouter is a managed LLM gateway. Langfuse is an OSS observability and evals platform. Different categories. We cover where they overlap, when to pick one, and how to run them together.
Compare FastRouter and Requesty on EU data residency, routing, evals, governance, and pricing. Decision guide for global and EU teams.
Compare FastRouter and Portkey after the Palo Alto Networks acquisition: features, routing, evals, roadmap risk, and a decision guide.
FastRouter (managed) vs LiteLLM (open-source proxy): operations, routing, evals, total cost, and a decision guide for production teams.
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Managing tool integration across multiple LLM providers leads to scattered auth logic, credential sprawl, and zero visibility. Here's how centralized MCP Gateway architecture solves it.
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A high eval pass rate tells you your test set is easy, not that your system is working. A practitioner argument for adversarial evaluation, done right
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There's a meaningful gap between what demo environments show and what production deployments actually handle when they're designed thoughtfully.
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How intelligent model routing works, what FastRouter’s auto mode actually does under the hood, and how to connect it in 10 minutes.
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In this part, we focus on what changed — the shift in how AI systems are used, and why the economics behind them are breaking.
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Why intelligent LLM routing — specifically using FastRouter with OpenClaw — is the most practical answer to that problem, and how to set it up.
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How One Team Built an AI Assistant That Actually Knows Their Product — Without Writing Integrations
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There's something deeply ironic about what happened to LiteLLM on March 24. LiteLLM is, by design, a credential proxy.
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Run a free LLM audit on real traffic. Find cheaper models, reduce costs, and optimize performance without sacrificing quality.
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Monitor latency, token usage, errors, and spend in AI systems. Learn why enterprise AI needs intelligent observability to detect silent failures.
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How to Compare LLM Models for Production: Side-by-Side Testing With Real Cost Data FastRouter Blog
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When you deploy an AI-powered application, you're not just shipping a feature—you're establishing trust.
Claude Code is revolutionizing developer workflows. Will you let it run wild with scattered API keys and surprise costs, or turn it into a governed, enterprise-grade powerhouse?
Using multiple LLM APIs? Discover the hidden costs of multi-model setups and how teams reduce spend, latency, and complexity.
Original article by Vamsi H exploring practical insights and real-world lessons for teams building and scaling AI systems in production.
This guide covers the steps to migrate to the Fastrouter AI Gateway and get access to 100+ models with 0% markup.
