Inception: Mercury 2 vs Qwen: Qwen3.5 Plus 2026-02-15: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Inception: Mercury 2 (inception/mercury-2) vs Qwen: Qwen3.5 Plus 2026-02-15 (qwen/qwen3.5-plus-02-15). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Inception: Mercury 2 (inception/mercury-2) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Inception: Mercury 2: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.125/1M) or route via asynchronous Batch API for 50% off standard token rates.
Qwen: Qwen3.5 Plus 2026-02-15 (qwen/qwen3.5-plus-02-15) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Qwen: Qwen3.5 Plus 2026-02-15: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.13/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Inception: Mercury 2 (API ID: inception/mercury-2) vs Qwen: Qwen3.5 Plus 2026-02-15 (API ID: qwen/qwen3.5-plus-02-15), Inception: Mercury 2 offers lower standard input pricing at $0.25/1M tokens ($0.75/1M output), while Inception: Mercury 2 leads in cached prefix economics at $0.125/1M tokens (50% discount). Inception: Mercury 2 achieves a 0ms faster P90 time-to-first-token latency (280ms vs 280ms).
Auto-discovered via live global telemetry registry.
Auto-discovered via live global telemetry registry.
| Specification / FinOps Dimension | Inception: Mercury 2 | Qwen: Qwen3.5 Plus 2026-02-15 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | inception/mercury-2 | qwen/qwen3.5-plus-02-15 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.25 / $0.75 | $0.26 / $1.56 | Inception: Mercury 2 |
| Cache Read Price (per 1M) | $0.125/1M (50% Off) | $0.13/1M (50% Off) | Inception: Mercury 2 |
| Context Window / Max Output | 125K In / 49K Out | 977K In / 64K Out | Qwen: Qwen3.5 Plus 2026-02-15 |
| P90 First-Token / Edge Latency | 280ms | 280ms | Inception: Mercury 2 (-0ms) |
Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM). Instead of generating tokens sequentially, Mercury 2 produces and refines multiple token
The Qwen3.5 native vision-language series Plus models are built on a hybrid architecture that integrates linear attention mechanisms with sparse mixture-of-experts models, achievin
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 Inception: Mercury 2 to Qwen: Qwen3.5 Plus 2026-02-15
The Qwen3.5 native vision-language series Plus models are built on a hybrid architecture that integrates linear attention mechanisms with sparse mixture-of-experts models, achievin Verified P90 latency of 280ms.