Upstage: Solar Pro 3 vs OpenAI: GPT-5 Mini: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Upstage: Solar Pro 3 (upstage/solar-pro-3) vs OpenAI: GPT-5 Mini (openai/gpt-5-mini). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Upstage: Solar Pro 3 (upstage/solar-pro-3) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Upstage: Solar Pro 3: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.075/1M) or route via asynchronous Batch API for 50% off standard token rates.
OpenAI: GPT-5 Mini (openai/gpt-5-mini) 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 Upstage: Solar Pro 3 (API ID: upstage/solar-pro-3) vs OpenAI: GPT-5 Mini (API ID: openai/gpt-5-mini), Upstage: Solar Pro 3 offers lower standard input pricing at $0.15/1M tokens ($0.6/1M output), while Upstage: Solar Pro 3 leads in cached prefix economics at $0.075/1M tokens (50% discount). Upstage: Solar Pro 3 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 | Upstage: Solar Pro 3 | OpenAI: GPT-5 Mini | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | upstage/solar-pro-3 | openai/gpt-5-mini | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.15 / $0.6 | $0.25 / $2 | Upstage: Solar Pro 3 |
| Cache Read Price (per 1M) | $0.075/1M (50% Off) | $0.125/1M (50% Off) | Upstage: Solar Pro 3 |
| Context Window / Max Output | 128K In / 115K Out | 391K In / 125K Out | OpenAI: GPT-5 Mini |
| P90 First-Token / Edge Latency | 280ms | 280ms | Upstage: Solar Pro 3 (-0ms) |
Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performanc
GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but wit
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 Upstage: Solar Pro 3 to OpenAI: GPT-5 Mini
GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but wit Verified P90 latency of 280ms.