SpaceXAI: Grok 4.5 vs OpenAI GPT-6.1 Sol: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing SpaceXAI: Grok 4.5 (x-ai/grok-4.5) vs OpenAI GPT-6.1 Sol (gpt-6.1-sol). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
SpaceXAI: Grok 4.5 (x-ai/grok-4.5) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for SpaceXAI: Grok 4.5: Activate ephemeral prefix caching to slash input costs by 50% (down to $1/1M) or route via asynchronous Batch API for 50% off standard token rates.
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 SpaceXAI: Grok 4.5 (API ID: x-ai/grok-4.5) vs OpenAI GPT-6.1 Sol (API ID: gpt-6.1-sol), SpaceXAI: Grok 4.5 offers lower standard input pricing at $2/1M tokens ($6/1M output), while OpenAI GPT-6.1 Sol leads in cached prefix economics at $0.5/1M tokens (75% discount). OpenAI GPT-6.1 Sol achieves a 10ms faster P90 time-to-first-token latency (270ms vs 280ms).
Auto-discovered via live global telemetry registry.
Context Cliff Alert: Prompts exceeding 272K tokens double in price from $2/$10 to $4/$15 per 1M tokens.
| Specification / FinOps Dimension | SpaceXAI: Grok 4.5 | OpenAI GPT-6.1 Sol | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | x-ai/grok-4.5 | gpt-6.1-sol | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $2 / $6 | $2 / $10 | SpaceXAI: Grok 4.5 |
| Cache Read Price (per 1M) | $1/1M (50% Off) | $0.5/1M (75% Off) | OpenAI GPT-6.1 Sol |
| Context Window / Max Output | 488K In / 439K Out | 1000K In / 128K Out | SpaceXAI: Grok 4.5 |
| P90 First-Token / Edge Latency | 280ms | 270ms | OpenAI GPT-6.1 Sol (-10ms) |
Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
OpenAI October 2026 flagship reasoning & coding model delivering near-Astra intelligence at 1/5th the cost.
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 SpaceXAI: Grok 4.5 to OpenAI GPT-6.1 Sol
OpenAI October 2026 flagship reasoning & coding model delivering near-Astra intelligence at 1/5th the cost. Verified P90 latency of 270ms.