OpenChat Openchat 3.6 8B vs OpenAI Codex Mini: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing OpenChat Openchat 3.6 8B (openchat/openchat-3.6-8b) vs OpenAI Codex Mini (openai/codex-mini). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
OpenChat Openchat 3.6 8B (openchat/openchat-3.6-8b) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for OpenChat Openchat 3.6 8B: Activate ephemeral prefix caching to slash input costs by 90% (down to 0.003/1M) or route via asynchronous Batch API for 50% off standard token rates.
OpenAI Codex Mini (openai/codex-mini) Startup Credits & Batch API 50% Off Promo
OpenAI GPT-6.1 Sol ($2/$10 base rate) qualifies for immediate 95% automatic prefix caching ($0.10/1M), 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 OpenChat Openchat 3.6 8B (API ID: openchat/openchat-3.6-8b) vs OpenAI Codex Mini (API ID: openai/codex-mini), OpenChat Openchat 3.6 8B offers lower standard input pricing at $0.03/1M tokens ($0.06/1M output), while OpenChat Openchat 3.6 8B leads in cached prefix economics at $0.003/1M tokens (90% discount). OpenChat Openchat 3.6 8B achieves a 0ms faster P90 time-to-first-token latency (195ms vs 195ms).
Gateway-synced rate ($0.03/$0.06 per 1M, flat 32K window). Verify upstream provider cache TTL and regional routing before high-volume batch runs.
Gateway-synced rate ($1.5/$6 per 1M, flat 200K window). Verify upstream provider cache TTL and regional routing before high-volume batch runs.
| Specification / FinOps Dimension | OpenChat Openchat 3.6 8B | OpenAI Codex Mini | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | openchat/openchat-3.6-8b | openai/codex-mini | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.03 / $0.06 | $1.5 / $6 | OpenChat Openchat 3.6 8B |
| Cache Read Price (per 1M) | $0.003/1M (90% Off) | $0.15/1M (90% Off) | OpenChat Openchat 3.6 8B |
| Context Window / Max Output | 32K In / 64K Out | 200K In / 64K Out | OpenChat Openchat 3.6 8B |
| P90 First-Token / Edge Latency | 195ms | 195ms | OpenChat Openchat 3.6 8B (-0ms) |
OpenChat Openchat 3.6 8B (openchat/openchat-3.6-8b): OpenRouter gateway-synced model at $0.03/1M input, $0.06/1M output, $0.003/1M cached input (32K context window).
OpenAI Codex Mini (openai/codex-mini): OpenRouter gateway-synced model at $1.5/1M input, $6/1M output, $0.15/1M cached input (200K context window).
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 OpenChat Openchat 3.6 8B to OpenAI Codex Mini
OpenAI Codex Mini (openai/codex-mini): OpenRouter gateway-synced model at $1.5/1M input, $6/1M output, $0.15/1M cached input (200K context window). Verified P90 latency of 195ms.