Anthropic: Claude Fable Latest vs Magnum v4 72B: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Anthropic: Claude Fable Latest (~anthropic/claude-fable-latest) vs Magnum v4 72B (anthracite-org/magnum-v4-72b). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Anthropic: Claude Fable Latest (~anthropic/claude-fable-latest) — $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 Fable Latest (API ID: ~anthropic/claude-fable-latest) vs Magnum v4 72B (API ID: anthracite-org/magnum-v4-72b), Magnum v4 72B offers lower standard input pricing at $2.5/1M tokens ($5/1M output), while Magnum v4 72B leads in cached prefix economics at $1.25/1M tokens (50% discount). Anthropic: Claude Fable Latest 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 Fable Latest | Magnum v4 72B | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | ~anthropic/claude-fable-latest | anthracite-org/magnum-v4-72b | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $10 / $50 | $2.5 / $5 | Magnum v4 72B |
| Cache Read Price (per 1M) | $5/1M (50% Off) | $1.25/1M (50% Off) | Magnum v4 72B |
| Context Window / Max Output | 977K In / 125K Out | 32K In / 4K Out | Anthropic: Claude Fable Latest |
| P90 First-Token / Edge Latency | 280ms | 280ms | Anthropic: Claude Fable Latest (-0ms) |
This model always redirects to the latest model in the Claude Fable family.
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 Fable Latest 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.