Upstage: Solar Pro 4 vs Anthropic: Claude Opus 4.1: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Upstage: Solar Pro 4 (upstage/solar-pro4) vs Anthropic: Claude Opus 4.1 (anthropic/claude-opus-4.1). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Upstage: Solar Pro 4 (upstage/solar-pro4) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Upstage: Solar Pro 4: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.045/1M) or route via asynchronous Batch API for 50% off standard token rates.
Anthropic: Claude Opus 4.1 (anthropic/claude-opus-4.1) — $25,000 Startup Credits & 50% Cache Promo
Anthropic's Q4 2026 developer promotion combines $25,000 in Claude API credits for early-stage builders with a permanent 20% base price reduction on Opus 5.5 ($4/$20), 0.05x ($0.20/1M) prompt cache reads, and 50% off Batch API processing ($2/$10 with 300K max output).
In Etuki October 2026 FinOps telemetry comparing Upstage: Solar Pro 4 (API ID: upstage/solar-pro4) vs Anthropic: Claude Opus 4.1 (API ID: anthropic/claude-opus-4.1), Upstage: Solar Pro 4 offers lower standard input pricing at $0.09/1M tokens ($0.36/1M output), while Upstage: Solar Pro 4 leads in cached prefix economics at $0.045/1M tokens (50% discount). Upstage: Solar Pro 4 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 4 | Anthropic: Claude Opus 4.1 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | upstage/solar-pro4 | anthropic/claude-opus-4.1 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.09 / $0.36 | $15 / $75 | Upstage: Solar Pro 4 |
| Cache Read Price (per 1M) | $0.045/1M (50% Off) | $7.5/1M (50% Off) | Upstage: Solar Pro 4 |
| Context Window / Max Output | 512K In / 128K Out | 195K In / 31K Out | Upstage: Solar Pro 4 |
| P90 First-Token / Edge Latency | 280ms | 280ms | Upstage: Solar Pro 4 (-0ms) |
Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window. It is built for long-horizon tasks and agentic workflows, with strong capabilities in
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified
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 4 to Anthropic: Claude Opus 4.1
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified Verified P90 latency of 280ms.