Anthropic: Claude Sonnet 5 vs Magnum v4 72B: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Anthropic: Claude Sonnet 5 (anthropic/claude-sonnet-5) vs Magnum v4 72B (anthracite-org/magnum-v4-72b). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Anthropic: Claude Sonnet 5 (anthropic/claude-sonnet-5) — $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).
Magnum v4 72B (anthracite-org/magnum-v4-72b) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Magnum v4 72B: Activate ephemeral prefix caching to slash input costs by 50% (down to $1.25/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Anthropic: Claude Sonnet 5 (API ID: anthropic/claude-sonnet-5) vs Magnum v4 72B (API ID: anthracite-org/magnum-v4-72b), Anthropic: Claude Sonnet 5 offers lower standard input pricing at $2/1M tokens ($10/1M output), while Anthropic: Claude Sonnet 5 leads in cached prefix economics at $1/1M tokens (50% discount). Anthropic: Claude Sonnet 5 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 | Anthropic: Claude Sonnet 5 | Magnum v4 72B | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | anthropic/claude-sonnet-5 | anthracite-org/magnum-v4-72b | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $2 / $10 | $2.5 / $5 | Anthropic: Claude Sonnet 5 |
| Cache Read Price (per 1M) | $1/1M (50% Off) | $1.25/1M (50% Off) | Anthropic: Claude Sonnet 5 |
| Context Window / Max Output | 977K In / 125K Out | 32K In / 4K Out | Anthropic: Claude Sonnet 5 |
| P90 First-Token / Edge Latency | 280ms | 280ms | Anthropic: Claude Sonnet 5 (-0ms) |
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reaso
This is a series of models designed to replicate the prose quality of the Claude 3 models, specifically Sonnet(https://openrouter.ai/anthropic/claude-3.5-sonnet) and Opus(https://o
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 Anthropic: Claude Sonnet 5 to Magnum v4 72B
This is a series of models designed to replicate the prose quality of the Claude 3 models, specifically Sonnet(https://openrouter.ai/anthropic/claude-3.5-sonnet) and Opus(https://o Verified P90 latency of 280ms.