DeepSeek V4.1 Flash 1017 vs GPT-6.1 Sol: Live Promos, Pricing, Hidden Fees & Latency
DeepSeek V4.1 Flash 1017 (deepseek-v4.1-flash-1017) — Automatic Disk KV Cache (0.006/1M) & Off-Peak Promo
DeepSeek-V4 Pro (1.6T MoE) automatically caches repeated 64-token prompt prefixes on NVMe storage at $0.07/1M input tokens (50% off $0.14 base) with zero code changes required, plus off-peak UTC scheduling discounts.
OpenAI & Microsoft Founders Hub ($2,500–$150,000 Credits) + 50% Batch API Discount
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 DeepSeek V4.1 Flash 1017 (API ID: deepseek-v4.1-flash-1017) vs GPT-6.1 Sol (API ID: gpt-6.1-sol), DeepSeek V4.1 Flash 1017 offers lower standard input pricing at $0.07/1M tokens ($0.14/1M output), while DeepSeek V4.1 Flash 1017 leads in cached prefix economics at $0.006/1M tokens (75% discount). DeepSeek V4.1 Flash 1017 achieves a 0ms faster P90 time-to-first-token latency (270ms vs 270ms).
Official token rate is $0.07/$0.14 with $0.006/1M disk-KV cache hit. Built-in Search & Fetch API calls are billed separately at $0.75 per 1,000 requests.
⚠️ 272K Context Cliff: Standard $2.00/$10.00 (Cache $0.10) applies up to ≤272K tokens. Prompts exceeding >272K tokens jump to $4.00 input / $15.00 output per 1M tokens.
| Specification / FinOps Dimension | DeepSeek V4.1 Flash 1017 | GPT-6.1 Sol | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | deepseek-v4.1-flash-1017 | gpt-6.1-sol | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.07 / $0.14 | $2 / $10 | DeepSeek V4.1 Flash 1017 |
| Cache Read Price (per 1M) | $0.006/1M (75% Off) | $0.1/1M (75% Off) | DeepSeek V4.1 Flash 1017 |
| Context Window / Max Output | 1000K In / 128K Out | 1000K In / 128K Out | DeepSeek V4.1 Flash 1017 |
| P90 First-Token / Edge Latency | 270ms | 270ms | DeepSeek V4.1 Flash 1017 (-0ms) |
DeepSeek Oct 17, 2026 Pareto coding update ("Wish-Driven Programming"): 77.0% on DeepSWE v1.1, 60.5% Automation-Bench, $0.07/$0.14 ($0.006 Cache Hit) + Search/Fetch API ($0.75/1K).
OpenAI Sep 29, 2026 flagship reasoning & coding model (superseding GPT-6 Sol) with $2/$10 base pricing and $0.10/1M (95% off) official cached input.
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 V4.1 Flash 1017 to GPT-6.1 Sol
OpenAI Sep 29, 2026 flagship reasoning & coding model (superseding GPT-6 Sol) with $2/$10 base pricing and $0.10/1M (95% off) official cached input. Verified P90 latency of 270ms.