OpenAI API Pricing & Model Reference
Official upstream pricing, reasoning tokens, realtime voice APIs, batch execution, and context caching rates for OpenAI models on Valstorm.
Official Provider Documentation: OpenAI API Pricing | OpenAI Models Overview
Overview & Gateway Architecture
This reference document outlines the upstream provider base pricing for OpenAI models routed through the Valstorm AI Platform.
Operating as an enterprise AI gateway, Valstorm provides unified access to these models alongside enterprise infrastructure:
- Intelligent Routing & Failover: Dynamic routing across models and providers with zero-downtime fallback.
- Enterprise Tool Execution: Sandboxed compute environments, web search grounding, vector retrieval (VFS), and database connectors.
- Context Caching & Optimization: Transparent prompt caching and token minimization pipelines.
- Multi-Tenant Security & Observability: Granular cost allocation, audit logs, and policy-driven rate limiting.
Note: Base provider rates shown below represent upstream pass-through pricing in USD per 1 Million (1M) tokens unless specified otherwise.
1. Flagship & Reasoning Models
All prices are in USD per 1M tokens (1,000,000 tokens).
| Model ID | Short Context Input | Short Context Cached Input | Short Context Output | Long Context Input | Long Context Output |
|---|---|---|---|---|---|
gpt-5.6-sol | $5.00 | $0.50 | $30.00 | $10.00 | $45.00 |
gpt-5.6-terra | $2.00 | $0.20 | $12.00 | $4.00 | $18.00 |
gpt-5.6-luna | $0.20 | $0.02 | $1.20 | $0.40 | $1.80 |
gpt-5.5 | $5.00 | $0.50 | $30.00 | $10.00 | $45.00 |
gpt-5.4 | $2.50 | $0.25 | $15.00 | $5.00 | $22.50 |
gpt-5.4-mini | $0.75 | $0.075 | $4.50 | — | — |
gpt-5.4-nano | $0.20 | $0.02 | $1.25 | — | — |
2. Processing Modes & Execution Tiers
Batch & Flex Modes (50% Cost Reduction)
For non-blocking asynchronous jobs (Batch API) or interruptible compute workloads (Flex Tier), base rates are discounted by 50%:
| Model ID | Batch/Flex Input | Batch/Flex Cached Input | Batch/Flex Output |
|---|---|---|---|
gpt-5.6-sol | $2.50 | $0.25 | $15.00 |
gpt-5.6-terra | $1.00 | $0.10 | $6.00 |
gpt-5.6-luna | $0.10 | $0.01 | $0.60 |
gpt-5.5 | $2.50 | $0.25 | $15.00 |
gpt-5.4 | $1.25 | $0.13 | $7.50 |
gpt-5.4-mini | $0.375 | $0.0375 | $2.25 |
3. Realtime Voice & Audio Models
| Model ID | Modality | Input Rate (1M tokens) | Cached Input Rate | Output Rate (1M tokens) |
|---|---|---|---|---|
gpt-realtime-2.1 | Audio | $32.00 | $0.40 | $64.00 |
| Text | $4.00 | $0.40 | $24.00 | |
gpt-realtime-2.1-mini | Audio | $10.00 | $0.30 | $20.00 |
| Text | $0.60 | $0.06 | $2.40 | |
gpt-transcribe | Async Audio | — | — | $0.0045 / minute |
gpt-live-transcribe | Streaming Audio | — | — | $0.0170 / minute |