#buildinpublic

日記を書くと 天使と悪魔が勝手に評論を始めるObsidianプラグインを作っています。

Agent Skills で AIに日記を分析してもらうだけでは少し物足りなかったので、音声とアニメーションで掛け合いを楽しめるようにしてみました。

まだ開発途中ですが、こんな感じで動いています。近日公開予定！

#Obsidian #AI #BuildInPublic

3/ Compare all cloud GPU & serverless endpoints hosting Claude 3.7 Sonnet (Extended Thinking) (<400ms TTFT SLA) on our live calculator:
https://tokenmargin.dev/models/claude-3-7-sonnet-thinking-pricing-calculator.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

Claude 3.7 Sonnet (Extended Thinking) Cloud Pricing & Cheapest Providers (2026):

What does Claude 3.7 Sonnet (Extended Thinking) actually cost in production across input, output & prompt caching? 🧵👇

#AI #LLM #DevTools #SaaS #BuildInPublic

Machine-generated articles reached roughly half of new web publishing, then parked there. Search surfacing held near 14% throughout. The ranking layer was already saturated, and extra supply had nothing to offer it.
#ai #buildinpublic
https://seldondance.substack.com/p/where-the-verdict-is-cheap

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/reasoning-model-token-multiplier-o3-mini-vs-deepseek-r1-vs-qwq-32b.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

3/ Run your own DAU, prompt cache hit rate (0-95%), and LiteLLM fallback router simulation on our live comparison page:
https://tokenmargin.dev/compare/claude-3-7-sonnet-vs-claude-3-5-sonnet.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

Claude 3.7 Sonnet vs Claude 3.5 Sonnet (v2): Which LLM API actually protects your SaaS gross margin at 10,000 DAU?

Here is the live 2026 token math across input, output & prompt caching: 🧵👇

#AI #LLM #DevTools #SaaS #BuildInPublic

Shipping Stripe on a vibe-coded app?

Does the webhook handler call constructEvent on the raw body?

If not, a stranger can fake a successful payment.

Curious how you test that path.

#Stripe #vibecoding #AppSec #SaaS #webdev #buildinpublic #AI #devtools

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/ai-coding-assistant-unit-economics-claude-sonnet-vs-qwen-coder-deepseek.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/prompt-caching-cost-calculator-anthropic-vs-openai-deepseek.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

Prompt Caching Cost Calculator: Anthropic vs OpenAI vs DeepSeek

Calculate exact monthly API savings from 50%–90% prompt cache hit rates across Claude 3.7 Sonnet (90% read discount), GPT-4.1/4o (75% discount), and DeepSeek V3 ($0.07/1M cached reads). 🧵👇

#AI #LLM #DevTools #SaaS #BuildInPublic

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/litellm-supply-chain-compromise-alternative-zero-dependency-llm-router.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

3/ Compare all cloud GPU & serverless endpoints hosting GPT-4o Mini (<400ms TTFT SLA) on our live calculator:
https://tokenmargin.dev/models/gpt-4o-mini-pricing-calculator.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

GPT-4o Mini Cloud Pricing & Cheapest Providers (2026):

What does GPT-4o Mini actually cost in production across input, output & prompt caching? 🧵👇

#AI #LLM #DevTools #SaaS #BuildInPublic

The 'AI will replace programmers' narrative is back. Same as 2023, 2024, 2025. Meanwhile: Junior dev hiring is up 12% YoY. The replacement isn't happening. The tooling is just getting better.

#AI #tech #hottake #buildinpublic

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/self-hosted-gpu-vllm-vs-serverless-api-break-even-calculator.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
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3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/zero-dependency-llm-router-vs-litellm-openrouter-fallback.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

Zero-Dependency SDK Fallback Routing vs LiteLLM & OpenRouter JSON

How to eliminate supply-chain risk and cut blended LLM API bills by 68% using native OpenRouter provider routing JSON or zero-dependency TypeScript/Python fallback wrappers. 🧵👇

#AI #LLM #DevTools #SaaS #BuildInPublic

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/multi-turn-agent-loop-token-bloat-cost-calculator.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

Autonomous AI Agent Loop Cost Calculator: Modeling 10–30 Turn Context Bloat

Why a 15-turn coding or browser agent consumes 12x more input tokens than a single-turn chat—and how rolling context truncation + prompt caching cuts agent loop bills by 78%. 🧵👇

#AI #LLM #DevTools #SaaS #BuildInPublic

When a model invents a citation, the misconduct charge lands on the researcher who quoted it. The invention stays in the weights, offered to everyone who asks next. Where a Correction Lands asks where the undoing goes. #ai #buildinpublic
https://seldondance.substack.com/p/where-a-correction-lands

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/openrouter-vs-deepinfra-vs-fireworks-ai-serverless-gpu-pricing-2026.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

Your AI, your rules. 🔓

We just launched API keys and an app builder with access to 1,250+ open-weight AI models. No account signup required.

#AI #OpenSourceAI #OpenWeightModels #AIDevelopers #BuildInPublic

brought to you by NFT Demon Holdings LLC
https://demonroute.com

3/ Run your own DAU, prompt cache hit rate (0-95%), and LiteLLM fallback router simulation on our live comparison page:
https://tokenmargin.dev/compare/claude-3-7-sonnet-vs-o3-mini.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

Claude 3.7 Sonnet vs OpenAI o3-mini: Which LLM API actually protects your SaaS gross margin at 10,000 DAU?

Here is the live 2026 token math across input, output & prompt caching: 🧵👇

#AI #LLM #DevTools #SaaS #BuildInPublic

3/ Run your own workload parameters & interactive FinOps stress test in our full engineering guide:
https://tokenmargin.dev/guides/ai-saas-gross-margin-calculator-per-seat-pricing-stress-test.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

3/ Run your own DAU, prompt cache hit rate (0-95%), and LiteLLM fallback router simulation on our live comparison page:
https://tokenmargin.dev/compare/llama-3-3-70b-instruct-vs-gpt-4o-mini.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic

Llama 3.3 70B Instruct vs GPT-4o Mini: Which LLM API actually protects your SaaS gross margin at 10,000 DAU?

Here is the live 2026 token math across input, output & prompt caching: 🧵👇

#AI #LLM #DevTools #SaaS #BuildInPublic

3/ Run your own DAU, prompt cache hit rate (0-95%), and LiteLLM fallback router simulation on our live comparison page:
https://tokenmargin.dev/compare/llama-4-maverick-vs-gpt-4-1.html?ref=bsky #AI #LLM #FinOps #DevTools #BuildInPublic