Blog

News and updates from TheRouter.ai.

·Providers

GPT-6 Sol and GPT-6 Luna API Guide: Pricing, Integration, and Migration from GPT-5.6

GPT-6 Sol ($2/$10 per 1M tokens) and GPT-6 Luna ($0.10/$0.50) launched September 22, 2026 — a 50%+ price cut from GPT-5.6. We cover model IDs, context windows, reasoning effort, SDK integration, migration from GPT-5.6, what TheRouter's catalog serves today (GPT-6 Astra and GPT-5.6 Sol/Luna — GPT-6 Sol and Luna are not yet listed), cross-provider fallback with Claude Sonnet 5, and cost savings math for mixed workloads.

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·Reference

Q4 2026 AI Model Deprecation Calendar: Every Sunset Date Across OpenAI, DashScope, Anthropic, and Google

October through December 2026 brings the year's largest wave of AI model retirements. OpenAI removes GPT-3.5 Turbo, GPT-4, o1, o3-mini, and o4-mini in a single October 23 sweep. DashScope sunsets dozens of legacy models on October 10. Anthropic's earliest active floors start expiring. This is the unified cross-provider calendar with every date, replacement model, and routing fallback config.

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·Reference

LLM API Provider Reliability and Uptime Comparison 2026 H2: Outage Patterns, SLA Gaps, and Fallback Architecture

We compared uptime, outage frequency, and incident resolution times across OpenAI, Anthropic, Google, DeepSeek, DashScope, and SiliconFlow APIs through the first eight months of 2026. AI APIs remain the least reliable API category tracked by independent monitors. Here is what the data shows and how multi-provider fallback routing changes the math.

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·Migration

DashScope October 2026 Model Sunset: 27-Day Last-Call Migration Checklist

October 10 is 27 days away. DashScope (Bailian) will hard-stop 100+ models — Qwen mainlines, snapshots, and every third-party model (DeepSeek, GLM, MiniMax, Kimi). QPM/TPM throttling is already underway. Here is the compact last-call checklist: audit your model IDs, swap replacements, get vendor-direct keys, and test before the deadline.

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·Models

Gemini 3.8 Flash API Complete Routing Guide: Flash-Tier Pricing with Frontier Coding Benchmarks

Gemini 3.8 Flash launched September 2, 2026 — Google's most intelligent Flash model for long-horizon coding and autonomous agents. Same $0.75/$3.75 introductory pricing as 3.7 Flash, but with meaningful gains in agentic reasoning. This guide covers API setup, pricing (including hidden thinking-token costs), benchmarks, multi-provider routing, and production deployment.

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·Providers

Claude Fable 5.1 API Guide: 75% Cheaper Cache, Tool-Choice Changes, and Migration from Fable 5

Claude Fable 5.1 keeps the same $10/$50 per-million-token prices as Fable 5 but slashes cache reads from $1.00 to $0.25 — a 75% cut that saves 25–45% on typical agentic workloads. We cover the five published rates, the tool_choice breaking change, the thinking-block compatibility rule, the migration checklist, and how to route Fable 5.1 alongside other frontier models.

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·Providers

GPT-6 Astra vs Claude Fable 5.1 vs Gemini 3.8 Flash: September 2026 Routing Decision Matrix

Three frontier models shipped within 72 hours in early September 2026. GPT-6 Astra and Claude Fable 5.1 share the same $10/$50 price tier but differ on cache economics and tool calling. Gemini 3.8 Flash undercuts both at $0.75/$3.75 while matching their coding benchmarks. We compare API surfaces, pricing, benchmarks, and routing strategies so you can pick the right model — or all three — for your workload.

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·Reference

LLM API Data Privacy and Retention Policies Across Providers: What Happens to Your Prompts After You Hit Send

A cross-provider reference comparing how OpenAI, Anthropic, Google, DeepSeek, and DashScope handle your API prompts and responses. We mapped default retention windows, zero-data-retention options, training opt-out mechanisms, compliance certifications, and data processing agreements — so you can make an informed procurement decision without reading six different privacy policies.

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·Migration

GPT-5.6 Programmatic Tool Calling: Migration Guide for Routing and Agent Workflows

GPT-5.6 introduces Programmatic Tool Calling — the model writes JavaScript to orchestrate your tools inside a V8 sandbox, cutting token use by 24–63% and eliminating round-trip overhead. The catch: it only works on the Responses API. We walk through the migration from classic function calling, highlight every breaking change, and show how to route GPT-5.6 through an OpenAI-compatible gateway during the transition.

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·Migration

October 2026 DashScope Model Sunset: Migration Guide for 100+ Retiring Models

On October 10, 2026, DashScope (Bailian) will retire 100+ models across four waves — Qwen3 mainlines, all legacy Qwen mainlines (qwen-turbo, qwq-plus, qvq-max), every third-party model (DeepSeek, MiniMax, GLM, Kimi), and 60+ snapshots. We mapped every retiring model to its replacement, wrote before/after code diffs, and built a migration checklist so you can switch before the deadline.

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·Providers

Xiaomi MiMo API: The Complete Integration Guide (2026)

Everything you need to integrate Xiaomi's MiMo model family via API — from signup and first call in 3 minutes to MiMo V2.5 Pro's trillion-parameter reasoning, multimodal V2.5, budget V2 Flash, ASR transcription, pricing, common errors, and routing MiMo alongside other providers.

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·New Model

Claude Sonnet 5 Is Now Available on TheRouter.ai

Claude Sonnet 5 is live on TheRouter as anthropic/claude-sonnet-5 — a 1M-token context window at standard pricing, 128K max output, vision and reasoning, and introductory pricing that comes in below Claude Sonnet 4.6. One OpenAI-compatible API key.

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·Models

GPT-5.6 Sol vs Terra vs Luna: Which Model Tier Should You Use?

OpenAI's GPT-5.6 family ships three named tiers — Sol, Terra, and Luna — instead of one model with effort settings. We compared pricing, benchmarks, and use cases across all three tiers so you can pick the right one for your workload and build a routing strategy around them.

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·Providers

Anthropic Claude API: The Complete Guide for AI Engineers (2026)

Everything you need to start building with the Anthropic Claude API — signup, API key, first call in 3 minutes. We cover every Claude model from Haiku 4.5 through Opus 4.8, extended thinking, effort levels, prompt caching, streaming, tool use, pricing, rate limits, common errors, and how to route Claude alongside other providers.

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·Minimax

MiniMax M3 Now Available on TheRouter.ai

MiniMax M3 is live on TheRouter.ai. It's an open-weight multimodal model with a 1M token context, native image and video input, frontier-level coding (59% SWE-Bench Pro), and launch pricing of $0.30/$1.20 per million tokens — one of the best price-to-capability ratios available today.

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·Mistral

Mistral Medium 3.5 Now Available on TheRouter.ai

Mistral Medium 3.5 is a 128B dense model with 256K context, native vision, and a togglable reasoning mode. It scores 77.6% on SWE-Bench Verified — above GPT-4o and Claude Sonnet at launch. Available now on TheRouter.ai at $1.5/M input, $7.5/M output.

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·Providers

Zhipu GLM API: The Complete Guide for AI Engineers (2026)

Everything you need to start building with Zhipu's GLM model family — signup, API key, first call in 3 minutes. We cover GLM-5.1, GLM-5, GLM-4.7, vision models, specialty models like GLM-OCR, pricing across BigModel and Z.AI, common errors, and how to route GLM as a primary or fallback provider.

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·Providers

DeepSeek API: The Complete Guide for AI Engineers (2026)

Everything you need to start building with the DeepSeek API — signup, API key, first call in 3 minutes. We cover V4-Flash and V4-Pro, thinking mode, streaming, tool calls, pricing, rate limits, common errors, and how to route DeepSeek as a primary or backup provider.

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·Model Wave

May 2026 Model Wave

Qwen 3.6 27B arrives alongside Kimi K2.6, Gemma 4, and Mistral Small 4 — all callable through the OpenAI-compatible API.

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