OpenAI GPT-5.3-Codex vs OpenAI: o1: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing OpenAI GPT-5.3-Codex (gpt-5.3-codex) vs OpenAI: o1 (openai/o1). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
OpenAI GPT-5.3-Codex (gpt-5.3-codex) 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: o1 (openai/o1) 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-5.3-Codex (API ID: gpt-5.3-codex) vs OpenAI: o1 (API ID: openai/o1), OpenAI GPT-5.3-Codex offers lower standard input pricing at $1.75/1M tokens ($14/1M output), while OpenAI GPT-5.3-Codex leads in cached prefix economics at $0.875/1M tokens (50% discount). OpenAI GPT-5.3-Codex achieves a 30ms faster P90 time-to-first-token latency (250ms vs 280ms).
Enable Prompt Context Caching & Batch API to reduce repeated system prompt input token burn by 50%-97.5%.
Auto-discovered via live global telemetry registry.
| Specification / FinOps Dimension | OpenAI GPT-5.3-Codex | OpenAI: o1 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | gpt-5.3-codex | openai/o1 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $1.75 / $14 | $15 / $60 | OpenAI GPT-5.3-Codex |
| Cache Read Price (per 1M) | $0.875/1M (50% Off) | $7.5/1M (50% Off) | OpenAI GPT-5.3-Codex |
| Context Window / Max Output | 1000K In / 128K Out | 195K In / 98K Out | OpenAI GPT-5.3-Codex |
| P90 First-Token / Edge Latency | 250ms | 280ms | OpenAI GPT-5.3-Codex (-30ms) |
Dedicated agentic software engineering model tuned for multi-hour terminal and IDE sessions.
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learn
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-5.3-Codex to OpenAI: o1
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learn Verified P90 latency of 280ms.