DeepSeek: DeepSeek V4 Flash Latest vs Reflection: Beam 1.0 501B A23B: Live Promos, Pricing, Hidden Fees & Latency
DeepSeek: DeepSeek V4 Flash Latest (~deepseek/deepseek-v4-flash-latest) — Automatic Disk KV Cache (0.0042/1M) & Off-Peak Promo
DeepSeek-V4 Pro (1.6T MoE) automatically caches repeated 64-token prompt prefixes on NVMe storage at $0.022/1M off-peak input tokens (vs $0.66 off-peak base) with zero code changes required, plus off-peak UTC scheduling discounts.
Reflection: Beam 1.0 501B A23B (reflection/beam-1.0-501b-a23b) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Reflection: Beam 1.0 501B A23B: Activate ephemeral prefix caching to slash input costs by 50% (down to 0.15/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing DeepSeek: DeepSeek V4 Flash Latest (API ID: ~deepseek/deepseek-v4-flash-latest) vs Reflection: Beam 1.0 501B A23B (API ID: reflection/beam-1.0-501b-a23b), DeepSeek: DeepSeek V4 Flash Latest offers lower standard input pricing at $0.0422/1M tokens ($0.1729/1M output), while DeepSeek: DeepSeek V4 Flash Latest leads in cached prefix economics at $0.0042/1M tokens (50% discount). DeepSeek: DeepSeek V4 Flash 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 | DeepSeek: DeepSeek V4 Flash Latest | Reflection: Beam 1.0 501B A23B | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | ~deepseek/deepseek-v4-flash-latest | reflection/beam-1.0-501b-a23b | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.0422 / $0.1729 | $0.3 / $1 | DeepSeek: DeepSeek V4 Flash Latest |
| Cache Read Price (per 1M) | $0.0042/1M (50% Off) | $0.15/1M (50% Off) | DeepSeek: DeepSeek V4 Flash Latest |
| Context Window / Max Output | 1024K In / 922K Out | 1024K In / 922K Out | DeepSeek: DeepSeek V4 Flash Latest |
| P90 First-Token / Edge Latency | 280ms | 280ms | DeepSeek: DeepSeek V4 Flash Latest (-0ms) |
This model always redirects to the latest model in the DeepSeek V4 Flash family.
Beam 1.0 is Reflection's open-weight reasoning model for coding and long-horizon agentic workflows. It uses a sparse mixture-of-experts architecture with 501B total and 23B active
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 DeepSeek: DeepSeek V4 Flash Latest to Reflection: Beam 1.0 501B A23B
Beam 1.0 is Reflection's open-weight reasoning model for coding and long-horizon agentic workflows. It uses a sparse mixture-of-experts architecture with 501B total and 23B active Verified P90 latency of 280ms.