Fireworks: Ember-1 vs OpenAI: GPT-5.4 Mini (batch): Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Fireworks: Ember-1 (fireworks/ember-1) vs OpenAI: GPT-5.4 Mini (batch) (openai/gpt-5.4-mini:batch). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Fireworks: Ember-1 (fireworks/ember-1) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Fireworks: Ember-1: Activate ephemeral prefix caching to slash input costs by 50% (down to $1.5/1M) or route via asynchronous Batch API for 50% off standard token rates.
OpenAI: GPT-5.4 Mini (batch) (openai/gpt-5.4-mini:batch) 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 Fireworks: Ember-1 (API ID: fireworks/ember-1) vs OpenAI: GPT-5.4 Mini (batch) (API ID: openai/gpt-5.4-mini:batch), OpenAI: GPT-5.4 Mini (batch) offers lower standard input pricing at $0.375/1M tokens ($2.25/1M output), while OpenAI: GPT-5.4 Mini (batch) leads in cached prefix economics at $0.1875/1M tokens (50% discount). Fireworks: Ember-1 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 | Fireworks: Ember-1 | OpenAI: GPT-5.4 Mini (batch) | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | fireworks/ember-1 | openai/gpt-5.4-mini:batch | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $3 / $15 | $0.375 / $2.25 | OpenAI: GPT-5.4 Mini (batch) |
| Cache Read Price (per 1M) | $1.5/1M (50% Off) | $0.1875/1M (50% Off) | OpenAI: GPT-5.4 Mini (batch) |
| Context Window / Max Output | 1024K In / 922K Out | 391K In / 125K Out | Fireworks: Ember-1 |
| P90 First-Token / Edge Latency | 280ms | 280ms | Fireworks: Ember-1 (-0ms) |
Ember-1 is a specialized reasoning model from Fireworks Research, built on [Kimi K3](https://openrouter.ai/moonshotai/kimi-k3). It is designed to make every token go further: it pr
GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads. It supports text and image inputs with strong perfor
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 Fireworks: Ember-1 to OpenAI: GPT-5.4 Mini (batch)
GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads. It supports text and image inputs with strong perfor Verified P90 latency of 280ms.