OpenAI: GPT-6 Astra vs OpenAI: GPT-5.6 Sol Pro: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing OpenAI: GPT-6 Astra (openai/gpt-6-astra) vs OpenAI: GPT-5.6 Sol Pro (openai/gpt-5.6-sol-pro). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
OpenAI: GPT-6 Astra (openai/gpt-6-astra) 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).
OpenAI: GPT-5.6 Sol Pro (openai/gpt-5.6-sol-pro) 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 Astra (API ID: openai/gpt-6-astra) vs OpenAI: GPT-5.6 Sol Pro (API ID: openai/gpt-5.6-sol-pro), OpenAI: GPT-5.6 Sol Pro offers lower standard input pricing at $4/1M tokens ($20/1M output), while OpenAI: GPT-5.6 Sol Pro leads in cached prefix economics at $2/1M tokens (50% discount). OpenAI: GPT-6 Astra 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 | OpenAI: GPT-6 Astra | OpenAI: GPT-5.6 Sol Pro | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | openai/gpt-6-astra | openai/gpt-5.6-sol-pro | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $10 / $50 | $4 / $20 | OpenAI: GPT-5.6 Sol Pro |
| Cache Read Price (per 1M) | $5/1M (50% Off) | $2/1M (50% Off) | OpenAI: GPT-5.6 Sol Pro |
| Context Window / Max Output | 1025K In / 125K Out | 1025K In / 125K Out | OpenAI: GPT-6 Astra |
| P90 First-Token / Edge Latency | 280ms | 280ms | OpenAI: GPT-6 Astra (-0ms) |
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creatio
GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on c
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 Astra to OpenAI: GPT-5.6 Sol Pro
GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on c Verified P90 latency of 280ms.