PrismML: Ternary Bonsai 2 27B vs OpenAI: GPT-6 Luna Pro (batch): Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing PrismML: Ternary Bonsai 2 27B (prism-ml/ternary-bonsai-2-27b) vs OpenAI: GPT-6 Luna Pro (batch) (openai/gpt-6-luna-pro:batch). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
PrismML: Ternary Bonsai 2 27B (prism-ml/ternary-bonsai-2-27b) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for PrismML: Ternary Bonsai 2 27B: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.0375/1M) or route via asynchronous Batch API for 50% off standard token rates.
OpenAI: GPT-6 Luna Pro (batch) (openai/gpt-6-luna-pro:batch) Startup Credits & Batch API 50% Off Promo
OpenAI GPT-6.1 Sol ($2/$10 base rate) qualifies for immediate 75% automatic prefix caching ($0.50/1M), 50% off 24-hour Batch API completions ($1/$5), and up to $150,000 in OpenAI/Azure Foundry credits via Microsoft for Startups Founders Hub (no VC funding required for initial tiers).
In Etuki October 2026 FinOps telemetry comparing PrismML: Ternary Bonsai 2 27B (API ID: prism-ml/ternary-bonsai-2-27b) vs OpenAI: GPT-6 Luna Pro (batch) (API ID: openai/gpt-6-luna-pro:batch), OpenAI: GPT-6 Luna Pro (batch) offers lower standard input pricing at $0.05/1M tokens ($0.25/1M output), while OpenAI: GPT-6 Luna Pro (batch) leads in cached prefix economics at $0.025/1M tokens (50% discount). PrismML: Ternary Bonsai 2 27B 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 | PrismML: Ternary Bonsai 2 27B | OpenAI: GPT-6 Luna Pro (batch) | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | prism-ml/ternary-bonsai-2-27b | openai/gpt-6-luna-pro:batch | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.075 / $0.5 | $0.05 / $0.25 | OpenAI: GPT-6 Luna Pro (batch) |
| Cache Read Price (per 1M) | $0.0375/1M (50% Off) | $0.025/1M (50% Off) | OpenAI: GPT-6 Luna Pro (batch) |
| Context Window / Max Output | 256K In / 32K Out | 1025K In / 125K Out | OpenAI: GPT-6 Luna Pro (batch) |
| P90 First-Token / Edge Latency | 280ms | 280ms | PrismML: Ternary Bonsai 2 27B (-0ms) |
Bonsai 2 27B is a 27B-parameter reasoning model from PrismML derived from Qwen3.8-27B. It supports coding, mathematics, tool calling, and image understanding with a 262K-token cont
GPT-6 Luna Pro is the same underlying model as [GPT-6 Luna](https://openrouter.ai/openai/gpt-6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on comp
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 PrismML: Ternary Bonsai 2 27B to OpenAI: GPT-6 Luna Pro (batch)
GPT-6 Luna Pro is the same underlying model as [GPT-6 Luna](https://openrouter.ai/openai/gpt-6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on comp Verified P90 latency of 280ms.