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Practical notes on AI models, API costs, and production workflows.

Model updates, integration guides, pricing breakdowns, and tool workflows for developers and teams.

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Claude Opus 5.5 vs GPT-6.1 Sol: Benchmarks, Pricing, and Selection
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Claude Opus 5.5 vs GPT-6.1 Sol: Benchmarks, Pricing, and Selection

Compare official benchmarks and API prices for Claude Opus 5.5 and GPT-6.1 Sol, with a 16-request Crazyrouter sample. Vendor claims and local results stay separate; the sample contains no Opus comparison.

October 30, 20268 viewsEnglishComparison
Prologue: How Far Apart Are Chinese and US AI Models, Really?
October 29, 202614 viewsEnglishComparison

Prologue: How Far Apart Are Chinese and US AI Models, Really?

Prologue to a China–US AI model series, using a 2026-10-29 snapshot to compare frontier gaps, the Opus 4.8 threshold, and 112 API calls.

Kimi K3.1 Pro vs Kimi K3.1 Pro Highspeed: 30 Tested Calls—How Should You Choose Between Speed and Cost?
October 29, 202624 viewsEnglishComparison

Kimi K3.1 Pro vs Kimi K3.1 Pro Highspeed: 30 Tested Calls—How Should You Choose Between Speed and Cost?

Across 30 paired calls, we compare success, response time, time to first answer, and gateway pricing. Highspeed was faster on four routine task types but slower on scheduling. Includes run-level data and reproducible code.

Enterprise AI Management with LiteLLM: Teams, Model Access and Costs
October 27, 202635 viewsEnglishTutorial

Enterprise AI Management with LiteLLM: Teams, Model Access and Costs

Manage enterprise AI across departments with LiteLLM and Crazyrouter: separate virtual keys, model permissions, team budgets, rate limits, usage tracking and billing reconciliation. Includes configuration exports, API test records and a deployment checklist.

Kimi K3.1 Pro vs Kimi K3: What 36 API Requests Tell Us
October 26, 202654 viewsEnglishComparison

Kimi K3.1 Pro vs Kimi K3: What 36 API Requests Tell Us

A 36-request comparison of Kimi K3.1 Pro and K3: where Pro finished more tasks, where the models tied, and what the timings, failures and pricing do—and do not—tell us.

Bitcoin Price and OpenAI GPT-5 Pricing: What the Mixed Search Means
October 20, 2026108 viewsEnglishGuide

Bitcoin Price and OpenAI GPT-5 Pricing: What the Mixed Search Means

Bitcoin has a changing market price, while GPT-5 has API token rates. Understand the difference and calculate a GPT-5 bill without confusing it with live crypto data.

What Is GLM-5.3-Prime? API Access, Pricing, and Verified First Response
October 20, 2026107 viewsEnglishGuide

What Is GLM-5.3-Prime? API Access, Pricing, and Verified First Response

GLM-5.3-Prime is a GLM-family model listed for token-based API access. See its catalog specifications, current price row, and an actual first response.

Codevolve Integrations: MindTap, LTI, and What You Can Verify Today
October 18, 2026100 viewsEnglishGuide

Codevolve Integrations: MindTap, LTI, and What You Can Verify Today

Codevolve’s documented integrations concern browser coding labs and learning platforms. Check the MindTap announcement, LTI submission behavior, and current support before migrating.

What Is Qwen3.7 Plus? Specs, Context Pricing, and a Working API Call
October 18, 2026163 viewsEnglishGuide

What Is Qwen3.7 Plus? Specs, Context Pricing, and a Working API Call

Understand Alibaba’s Qwen3.7 Plus, its context-based token pricing, and how to send a verified API request with the exact model ID.