Anthropic released Claude Fable 5.1 on 9/1: base input/output pricing is unchanged at $10/$50 per million tokens, but cache reads dropped from $1.00 to $0.25 (↓75%), saving up to 45% on cache-heavy agentic workloads. Google released Gemini 3.8 Flash on 9/2 at an introductory $0.75/$3.75, good only through 2026-12-31 — standard pricing doubles to $1.50/$7.50 starting 2027-01-01.
OpenAI's Assistants API (/v1/assistants, /v1/threads, /v1/threads/runs) officially sunset on 2026-08-26 — announced a year in advance, zero grace period, no automated migration tool. This isn't a pricing change on its own, but the forced migration also forces a model choice: workloads that ran on o3 ($2.00/$8.00 per million input/output tokens) via Assistants have no direct successor. OpenAI's official recommendation is GPT-5.6 Sol ($4.00/$20.00, cost ↑129%), but Terra ($2.00/$12.00, ↑29%) is often good enough in practice — a 44% gap between the two paths.
Effective 2026-08-23 00:00 Beijing time, DeepSeek no longer distinguishes peak from off-peak hours on Saturdays and Sundays — the entire weekend now bills at the off-peak rate. Previously, weekends followed the same schedule as weekdays, with V4-Pro output costing $3.96/1M tokens during peak windows; now weekends are $1.98/1M all day. Weekday billing is unchanged. This lands just one week after the 8/16 peak-hour price hike (output up 355%-371%).
Google Cloud added Flexible Savings Plans for Gemini Enterprise (spend-based monthly commitment, 10% off for 1-year, 20% off for 3-year, no minimum or maximum), a new pay-as-you-go consumption edition, and an upcoming off-peak batch processing option (up to 50% off inference cost), effective 2026-08-26. Unlike OpenAI's GPT-5.6 Sol sticker-price cut, this doesn't touch list prices at all — it's a whole new billing toolkit. Where OpenAI is fighting a price war, Google is fighting a FinOps-governance war.
The same model can cost 2-5× more depending on the channel. Direct API is simplest, aggregators (OpenRouter) are most flexible, cloud platforms (Bedrock/Vertex) suit enterprises. This post compares actual August 2026 prices across six channels with a decision tree.
MiniMax started as a consumer chat app company, then M2.5 scored 80.2% on SWE-bench Verified at 1/10-1/20 the cost of Claude Opus; M3 (456B total / 45.9B active) became the first open-weight model to clear 59% on SWE-bench Pro, with 1M context powered by their novel Sparse Attention mechanism.
OpenAI officially lowered GPT-5.6 Sol standard rates from $5.00/$30.00 to $4.00/$20.00 per million tokens (input/output; input ↓20%, output ↓33%), effective 2026-08-21, promotional period at least through 11/21. This is OpenAI's own price cut — not an OpenRouter/Cloudflare-style platform promo (see previous post). The two now stack: OpenRouter's 50% discount applies on top of the new $4/$20 base, yielding $2.00/$10.00.
GPT-5.6 Sol standard rates through OpenRouter and Cloudflare AI Gateway drop from $5.00/$30.00 to $2.50/$15.00 per million tokens (input/output, -50%); Flex goes as low as $1.25/$7.50. Promo runs through 2026-09-18. Discount applies only to platform-managed billing (Unified Billing / non-BYOK) traffic — OpenAI's own API pricing is unchanged.
Free access is not one model: recurring allowances, balance top-ups, rate-limited access, one-time credits, and self-hosting have different steady-state costs.
Amp spun out of Sourcegraph in December 2025 as Amp Frontier Corporation, and its npm package moved from @sourcegraph/amp to @ampcode/cli. Its defining trait is deletion: the editor extension, Amp Tab, TODO lists, Fork, custom commands, and public threads have all been removed. Monthly subscriptions only arrived on 2026-07-18 (Megawatt $20, Gigawatt $200); before that it was pay-as-you-go only. The current focus is orbs — remote machines that keep working after you close your laptop.
Copilot CLI went GA on 2026-02-25 and is included in every Copilot plan, Free included. Its differentiator isn't the agent — it's the GitHub integration: a built-in GitHub MCP server that works on issues and PRs, org policies inherited automatically, and an `&` prefix that hands work to the cloud coding agent. Billing runs on GitHub AI Credits (1 credit = $0.01): Pro $10/mo includes $15, Pro+ $39 includes $70, Max $100 includes $200.
The Workers AI catalog currently holds 84 models. For general chat pick glm-4.7-flash ($0.06 / $0.40 per M, 131K context), for vision pick gemma-4-26b-a4b-it ($0.10 / $0.30, 256K), for cheap high-volume steps pick granite-4.0-h-micro ($0.017 / $0.112), and for embeddings pick qwen3-embedding-0.6b or bge-m3 (both $0.012 per M). This post is updated on a schedule.
Claude Sonnet 5 was set to jump from its promo price of $2/$10 to $3/$15 on 9/1. On 8/10 Anthropic updated its pricing page to confirm the increase 'will not happen' — $2/$10 is now the permanent price. For a workload of 300K customer-service conversations per month, that avoids a $1,200/month cost increase (↓33%), and means Sonnet 5 is now permanently cheaper than its predecessor Sonnet 4.6 ($3/$15).
How an individual connects tools is a preference; how an organization does it is governance — who can touch what data, where keys live, whose budget it lands on. Anthropic's published record of ten internal teams contains a good indicator: security engineering accounts for 50% of all custom slash commands in the entire monorepo. Adoption doesn't spread evenly; it takes off first in teams that already build their own tools.
DeepSeek V4-Pro peak Output jumped from $0.87 to $3.96/1M tokens (↑355%), V4-Flash from $0.28 to $1.32 (↑371%), effective 2026-08-16 16:00 UTC. Off-peak rates are half of peak (peak hours: 01:00-04:00 and 06:00-10:00 UTC). Post-hike prices still undercut GPT-5.6 and Claude, but the low-cost moat has narrowed significantly.
"Digital employee" isn't a technology — it's a pricing and accountability unit. Anthropic's Project Vend had Claude actually run three shops, and found the most effective intervention wasn't a smarter model but forcing it to follow procedures. Their words: "we rediscovered that bureaucracy matters." Gartner estimates only ~130 of the thousands of vendors claiming to be agentic actually are.
The unit of validation is an assumption, not an idea. Kohavi's data shows the industry median experiment success rate is ~10%, which means roughly 22% of 'winning' experiments at p<0.05 are false positives. Sean Ellis's 40% threshold has no publicly available dataset. AI product retention should be baselined at M3 rather than M0, and GRR splits from 23% below $50/mo to 70% above $250/mo.
For side projects, toy demos, and RAG prototypes, nobody wants to swipe a credit card on day one. This is a verified roundup of 40+ LLM inference providers still operating as of 2026/05, tiered by whether free resources auto-replenish or are one-time grants. Each entry notes credit-card requirements, supported models, paid starting prices, and catches. Chinese-origin providers including Zhipu GLM (permanently free), Doubao (2M tokens/day), Kimi, DashScope, and the Ollama local option are all included.
Claude Code runs from $20/mo Pro to $200/mo Max 20x. Quota is a rolling five-hour window with weekly limits on top, shared across Claude on web, desktop, mobile, and the terminal. When you run out you can switch to usage credits at standard API rates rather than stopping.
Cursor CLI brings the IDE agent to the terminal with an interactive TUI and headless mode, Plan/Ask/Agent modes, Cloud Handoff, and CI/CD integration. Billing now runs on two separate usage pools: Cursor's own models (Grok 4.6/4.5, Composer 2.5) and third-party models (Pro includes $20, Pro+ $70, Ultra $400).
The paying paths on Google's side: the individual free tier and Gemini CLI access on Google AI Pro / Ultra ended 2026/6/18, leaving individuals with Antigravity CLI or their own paid API key; enterprise licenses and Google Cloud are unaffected. The zero-cost starting option now belongs to someone else.
Kiro has five tiers: Free 50 credits, Pro $20/1,000, Pro+ $40/2,000, Pro Max $100/5,000, and Power $200/10,000, with add-on credits at $0.04. Auto mode mixes models to cut cost (the same task costs 1.3x credits via Sonnet), and the spec-driven flow turns vibe coding into traceable, structured development.
Codex rides your ChatGPT subscription (Free / Go $8 / Plus $20 / Pro 5x $100 / Pro 20x $200), and since 2026/4/2 billing is token-based credits. The model line is GPT-5.6 Sol / Terra / Luna; GPT-5.4 and 5.4 mini retire from ChatGPT-signed-in Codex on 2026/8/31.