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AI Model & API Guides

Practical tutorials · Cost boundaries · Troubleshooting

Source-linked guidance for AI models, API integration, and developer workflows—turning fast-changing prices, quotas, capabilities, and limits into decisions you can verify.

  • Primary sources first
  • Reproducible steps and failure boundaries
  • Volatile facts carry review dates
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Sep 8, 2026
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439 articles

Claude Mythos API pricing and purchasing optionsAPI Guides

Claude Mythos API Pricing: 5.1 Rates, Cache Costs, and Access

Mythos 5.1 is invitation-only. Its listed rates are $10 per million input tokens, $50 per million output tokens and $0.25 for cache reads. Compare versions and calculate costs.

Grok Bot setup and first-task workflow, from account access to reviewing a resultAI Tools

Getting Started with Grok Bot: Install, Sign In, and Create Your First Bot

Install Grok Bot on macOS, Windows, or Linux, sign in with the right Cursor account, create your first Bot, and turn an attached document into a report you can check and save.

Editorial comparison of FLUX.2 Pro and Nano Banana Pro leading to an approved product campaign imageAI Image Generation

FLUX.2 Pro vs Nano Banana Pro: Editing, API Costs, and Which to Choose

FLUX.2 Pro starts cheaper for generation, but reference images narrow the price gap. Compare both models at the same dimensions, understand their editing limits, and choose by the cost of usable final images.

OpenAI API 429 diagnosis branching into paced traffic recovery and account limit checks.API Guides

OpenAI API Error 429: Diagnose Rate Limits, Quota, and Spend Caps

An OpenAI API 429 can mean temporary throttling, depleted credits, or an enforced account limit. Read the error code before deciding whether to wait, change billing, or reduce traffic.

ChatGPT PDF upload troubleshooting with a sample PDF and a separate browser sessionAI Troubleshooting

ChatGPT PDF Upload Unknown Error: Two Checks and the Right Fix

Fix ChatGPT’s “Unknown Error Occurred” when uploading a PDF. Two file-and-browser checks help you choose a document, upload-limit, or connection fix.

Comparison of direct Google access, LaoZhang gateway access, and using both for Nano Banana image requestsAPI Pricing

Nano Banana API: Google vs. LaoZhang Cost and Image Delivery

Compare Google direct and LaoZhang for Nano Banana 2 and Pro, with matching image sizes, realistic delivery costs, a working image-saving example, and recovery steps.

Illustrated workbench comparing Claude Opus 4.6 and GPT-5.3-Codex with a shared repository, acceptance tests, and a cost ledgerAI Model Comparison

Claude Opus 4.6 vs GPT-5.3-Codex: Costs, Limits, and a Fair Coding Test

GPT-5.3-Codex has lower token rates; Claude Opus 4.6 has a larger context window. Compare both models' cache costs and test the same coding task before deciding which produces cheaper, acceptable work.

Claude Opus 4.6 and 4.7 comparison covering API migration, token costs, and workload testing.AI Model Comparison

Claude Opus 4.7 vs 4.6: API Migration, Token Costs, and When to Upgrade

Moving an existing Claude Opus 4.6 integration to 4.7 changes thinking controls, sampling parameters, and token counts. Use these request examples and a controlled workload comparison to decide whether the upgrade pays off.

Comparison board for choosing between Claude Opus 4.7, GPT-5.4, and Gemini 3.1 ProAI Model Comparison

Claude Opus 4.7 vs GPT-5.4 vs Gemini 3.1 Pro: API Costs and Capabilities

Compare the three APIs by input formats, context limits, tools, and request costs. Worked pricing examples show why the cheapest model changes with prompt size.

Gemini 3.2 Flash name and official release statusAI Models

Gemini 3.2 Flash: What Google's Official Model List Shows

Gemini 3.2 Flash is not listed in Google's current Gemini API catalog. Check the confirmed Flash releases and find the model ID to use for your application.

GPT-6 Astra API pricing overview showing context bands, token categories, and the steps for calculating a request's cost.AI Models

GPT-6 Astra API Pricing: Rates, Caching, and Cost Examples

GPT-6 Astra starts at $10 per million ordinary input tokens and $50 per million output tokens. Calculate request costs with the correct cache categories, context band, and processing tier.

Comparison of Kimi K2.6, DeepSeek V4, GPT-5.5 and Claude Opus 4.7 for API workloadsAI Model Comparison

Kimi K2.6 vs DeepSeek V4 vs GPT-5.5 vs Claude Opus 4.7: API Costs and Coding Tests

Compare Kimi K2.6, DeepSeek V4, GPT-5.5 and Claude Opus 4.7 APIs: context, current token prices, worked costs and tests for choosing a coding model.

Gemini image generation stuck loading on a computer beside a phone with a text-only responseGemini Image

Nano Banana Not Working in Gemini? Fix Stuck or Missing Images

If Nano Banana gets stuck loading or Gemini replies without an image, start with the Images tool and the message on screen. A small comparison can help you decide what to try next.

Sora 2 API workflow for pacing requests, diagnosing errors, and saving completed videosAI Video Generation

Sora 2 API Limits: Rate Limits, 429 Errors, and Download Windows

Check the Sora 2 RPM table and your project's effective limits, retry temporary errors without duplicating jobs, and understand the separate one-hour and 24-hour download windows.

Illustrated comparison of cropping, fixed-area repair, and tracking a moving watermark in a downloaded MP4AI Tools

Sora 2 Watermark Remover: How to Clean Up a Downloaded MP4

A practical Sora 2 watermark removal guide for saved MP4s: copyable FFmpeg commands, crop and repair tradeoffs, moving-watermark limits, and audio checks.

Claude Sonnet 5 pricing after the canceled September increaseClaude

Claude Sonnet 5 Price Increase Canceled: Current Rates and Billing Math

Anthropic canceled the September 1 Sonnet 5 API price increase. See the current USD rates, what changes in a September budget, and how to reconcile uncached input, cache writes, cache reads, and output.

FLUX.2 Pro and Flex illustrated as production and adjustable-detail workflowsAI Image Generation

FLUX.2 Flex vs Pro: Which Model Is Worth Using?

Start with FLUX.2 Pro for lower generation costs. Test Flex when text or fine details need more control. Compare current BFL pricing, editing costs, and the acceptance rate that would justify paying more.

Choosing a single RTX 5090 or dual GPUs for Qwen3.8-27B based on precision, context, and concurrency.AI Models

Qwen3.8-27B VRAM Guide: RTX 5090, Dual GPUs, and 262K Context

A 32GB RTX 5090 can run quantized Qwen3.8-27B, but fitting 262,144 tokens depends on the weights, KV cache, runtime, and workload. Use these memory budgets and configuration checks to choose a practical single- or dual-GPU setup.

A request passing through an optional API Management policy and Azure OpenAI deployment checks that can return 429.API

Azure OpenAI TPM Rate Limits: Diagnose 429s Below Quota

Azure OpenAI can return 429 while billed token usage looks low. Compare the receiving deployment’s allocation with response headers, account for estimated tokens and request bursts, and verify recovery without hiding failures behind retries.

GPT-6 Astra request workflow linking the service, project key, and model to response verificationAI API

GPT-6 Astra API Access: Check Your Project and Make a First Request

GPT-6 Astra API access depends on the service, organization, and project behind your key. Use a complete first-request example to check access, read the response correctly, and identify the next step when a call fails.

Astra limits separated into Chat message caps, the shared Work and Codex allowance, and API billing and throughputAI Development Tools

Codex Usage Limits: Check Your Astra Allowance and Get Back to Work

Check your Codex allowance and reset time, then decide whether to wait, use a banked reset, or buy more usage. GPT-6 Astra has different limits in Chat, Work, and the API.

Sora 2 API removal scheduled for September 24, 2026, separate from the April 26 Sora app discontinuationAI Video Generation

Sora 2 API shutdown: the September 24 deadline and what to do now

OpenAI has scheduled the Sora 2 models and Videos API for removal on September 24, 2026. Here is how to separate the app, direct API, and Microsoft Foundry deadlines—and preserve your work before switching providers.

Sora 2 API migration to Veo 3.1 with the scheduled September 24, 2026 removal date.AI Video Generation

Sora 2 vs. Veo 3.1 API: Costs, Compatibility, and Migration

Veo 3.1 can replace short-video generation in a Sora integration, but requests, job tracking, assets, and output constraints change. Compare current API costs and follow the migration through to a saved video.

Illustration for creating and checking transparent PNG assetsAI Image Editing

Make a Transparent PNG with GPT Image 2—or Remove an Existing Background

A reusable cutout needs more than a .png extension. Start with the right creation method, then check the downloaded file and the background where it will actually appear.

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