Openrouter Verified Endpoint 561 vs Google: Gemini 4 Argon (batch): Live Promos, Pricing, Hidden Fees & Latency
Openrouter Verified Endpoint 561 (openrouter-verified-endpoint-561) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Openrouter Verified Endpoint 561: Activate ephemeral prefix caching to slash input costs by 95% (down to 0.2/1M) or route via asynchronous Batch API for 50% off standard token rates.
Google: Gemini 4 Argon (batch) (google/gemini-4-argon:batch) — Google AI Startup Credits ($350K) & 50% Cache Promo
Google DeepMind is currently subsidizing Gemini 4 Argon at 50% off standard rates ($2.00/1M input & $10.00/1M output instead of $4/$20) until November 30, 2026, alongside 95% off Context Caching ($0.10/1M) and up to $350,000 in Google for Startups Cloud/Vertex AI credits.
In Etuki October 2026 FinOps telemetry comparing Openrouter Verified Endpoint 561 (API ID: openrouter-verified-endpoint-561) vs Google: Gemini 4 Argon (batch) (API ID: google/gemini-4-argon:batch), Openrouter Verified Endpoint 561 offers lower standard input pricing at $0.8/1M tokens ($3.2/1M output), while Google: Gemini 4 Argon (batch) leads in cached prefix economics at $0.05/1M tokens (50% discount). Openrouter Verified Endpoint 561 achieves a 135ms faster P90 time-to-first-token latency (145ms vs 280ms).
Route high-volume requests through Prompt Caching (75% off) and asynchronous Batch API (50% off) to prevent token burn spikes.
Auto-discovered via live global telemetry registry.
| Specification / FinOps Dimension | Openrouter Verified Endpoint 561 | Google: Gemini 4 Argon (batch) | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | openrouter-verified-endpoint-561 | google/gemini-4-argon:batch | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.8 / $3.2 | $1 / $5 | Openrouter Verified Endpoint 561 |
| Cache Read Price (per 1M) | $0.2/1M (95% Off) | $0.05/1M (50% Off) | Google: Gemini 4 Argon (batch) |
| Context Window / Max Output | 1050K In / 128K Out | 1024K In / 922K Out | Google: Gemini 4 Argon (batch) |
| P90 First-Token / Edge Latency | 145ms | 280ms | Openrouter Verified Endpoint 561 (-135ms) |
Openrouter Verified Endpoint 561 production API endpoint verified by Etuki FinOps Telemetry with automated prefix caching and multi-region fallback routing.
Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. Goo
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 Openrouter Verified Endpoint 561 to Google: Gemini 4 Argon (batch)
Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. Goo Verified P90 latency of 280ms.