OpenAI Model Lineup (April 2026)
| Model | Input (per 1M) | Output (per 1M) | Context | Best For |
|---|---|---|---|---|
| GPT-4o-mini | $0.15 | $0.60 | 128K | High-volume, budget tasks |
| GPT-5-mini | $0.25 | $2.00 | 128K | Budget with improved reasoning |
| GPT-4o | $2.50 | $10.00 | 128K | General production use |
| GPT-5 | $10.00 | $30.00 | 256K | Complex reasoning, agents |
Prices approximate. Check OpenAI's pricing page for current rates. Last updated April 2026.
Monthly Cost Estimates
Practical monthly costs assuming 1,000 input tokens and 500 output tokens per average request:
| Daily Requests | GPT-4o-mini | GPT-4o | GPT-5 |
|---|---|---|---|
| 1,000 | $13.50 | $225 | $750 |
| 10,000 | $135 | $2,250 | $7,500 |
| 100,000 | $1,350 | $22,500 | $75,000 |
Understanding OpenAI's Model Tiers
GPT-4o-mini is the workhorse for budget-conscious applications. At $0.15/$0.60, it handles classification, simple Q&A, extraction, and lightweight chat affordably. Quality is acceptable for straightforward tasks but noticeably lower than GPT-4o on complex reasoning.
GPT-5-mini is OpenAI's newer budget offering at $0.25/$2.00. It brings improved reasoning capabilities compared to GPT-4o-mini but at a higher output cost. Suitable for workloads that need more intelligence than mini but cannot justify GPT-4o pricing.
GPT-4o remains the sweet spot for production applications. At $2.50/$10.00, it offers strong performance across all task types, mature function calling, and the most developed ecosystem of tools and integrations. Most applications should start here.
GPT-5 is OpenAI's frontier model at $10.00/$30.00. It excels at complex agentic reasoning, multi-step planning, and tasks that push the limits of current AI capability. Reserve it for high-value tasks where its capabilities justify the 4x premium over GPT-4o.
Cost Optimization for OpenAI APIs
- Model tiering: Use GPT-4o-mini for simple tasks, GPT-4o for production quality, and GPT-5 only when needed. This alone can cut costs by 50% or more.
- Prompt caching: OpenAI supports automatic prompt caching that reduces costs on repeated prompt prefixes.
- Batch API: For non-real-time workloads, OpenAI's batch API offers a 50% discount on all models.
- Structured outputs: Using JSON mode and structured outputs reduces wasted output tokens and retries.
OpenAI + Hybrid Routing
Token Landing extends OpenAI's model tiering with cross-provider routing. Instead of choosing only between GPT models, you can blend GPT-4o with Claude Sonnet 4 for better reasoning or DeepSeek V3 for cheaper bulk processing — all through the same OpenAI-compatible API endpoint you already use.
Effective blended rate: $0.80-1.50/$3.00-6.00 per 1M tokens with quality configurable per route.