AionLabs: Aion 3.5 vs OpenRouter Unified Gateway: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing AionLabs: Aion 3.5 (aion-labs/aion-3.5) vs OpenRouter Unified Gateway (openrouter/auto). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
AionLabs: Aion 3.5 (aion-labs/aion-3.5) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for AionLabs: Aion 3.5: Activate ephemeral prefix caching to slash input costs by 50% (down to $1.5/1M) or route via asynchronous Batch API for 50% off standard token rates.
OpenRouter Unified Gateway (openrouter/auto) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for OpenRouter Unified Gateway: Activate ephemeral prefix caching to slash input costs by 50% (down to $1/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing AionLabs: Aion 3.5 (API ID: aion-labs/aion-3.5) vs OpenRouter Unified Gateway (API ID: openrouter/auto), OpenRouter Unified Gateway offers lower standard input pricing at $2/1M tokens ($10/1M output), while OpenRouter Unified Gateway leads in cached prefix economics at $1/1M tokens (50% discount). OpenRouter Unified Gateway achieves a 20ms faster P90 time-to-first-token latency (260ms vs 280ms).
Auto-discovered via live global telemetry registry.
Enable Prompt Context Caching & Batch API to reduce repeated system prompt input token burn by 50%-97.5%.
| Specification / FinOps Dimension | AionLabs: Aion 3.5 | OpenRouter Unified Gateway | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | aion-labs/aion-3.5 | openrouter/auto | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $3 / $6 | $2 / $10 | OpenRouter Unified Gateway |
| Cache Read Price (per 1M) | $1.5/1M (50% Off) | $1/1M (50% Off) | OpenRouter Unified Gateway |
| Context Window / Max Output | 256K In / 32K Out | 400K In / 128K Out | OpenRouter Unified Gateway |
| P90 First-Token / Edge Latency | 280ms | 260ms | OpenRouter Unified Gateway (-20ms) |
Aion 3.5 is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It uses a collaborative generation process in which multiple special
Single API routing across 400+ live models (GPT-6.1 Sol, Opus 5.5, Gemini 4 Argon) with automatic price arbitrage.
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🛣️Switch from AionLabs: Aion 3.5 to OpenRouter Unified Gateway
Single API routing across 400+ live models (GPT-6.1 Sol, Opus 5.5, Gemini 4 Argon) with automatic price arbitrage. Verified P90 latency of 260ms.