OpenAI GPT-6.1 Sol vs OpenAI GPT-5.4 nano: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing OpenAI GPT-6.1 Sol (gpt-6.1-sol) vs OpenAI GPT-5.4 nano (gpt-5.4-nano). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
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).
OpenAI GPT-5.4 nano (gpt-5.4-nano) Startup Credits & Batch API 50% Off Promo
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 OpenAI GPT-6.1 Sol (API ID: gpt-6.1-sol) vs OpenAI GPT-5.4 nano (API ID: gpt-5.4-nano), OpenAI GPT-5.4 nano offers lower standard input pricing at $0.2/1M tokens ($1.25/1M output), while OpenAI GPT-5.4 nano leads in cached prefix economics at $0.1/1M tokens (50% discount). OpenAI GPT-5.4 nano achieves a 160ms faster P90 time-to-first-token latency (110ms vs 270ms).
Context Cliff Alert: Prompts exceeding 272K tokens double in price from $2/$10 to $4/$15 per 1M tokens.
Enable Prompt Context Caching & Batch API to reduce repeated system prompt input token burn by 50%-97.5%.
| Specification / FinOps Dimension | OpenAI GPT-6.1 Sol | OpenAI GPT-5.4 nano | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | gpt-6.1-sol | gpt-5.4-nano | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $2 / $10 | $0.2 / $1.25 | OpenAI GPT-5.4 nano |
| Cache Read Price (per 1M) | $0.5/1M (75% Off) | $0.1/1M (50% Off) | OpenAI GPT-5.4 nano |
| Context Window / Max Output | 1000K In / 128K Out | 1000K In / 128K Out | OpenAI GPT-6.1 Sol |
| P90 First-Token / Edge Latency | 270ms | 110ms | OpenAI GPT-5.4 nano (-160ms) |
OpenAI October 2026 flagship reasoning & coding model delivering near-Astra intelligence at 1/5th the cost.
Ultra-fast classification, tagging, and high-volume FAQ model replacing legacy GPT-4o mini.
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 OpenAI GPT-6.1 Sol to OpenAI GPT-5.4 nano
Ultra-fast classification, tagging, and high-volume FAQ model replacing legacy GPT-4o mini. Verified P90 latency of 110ms.