- gpt-oss-120b (free) — $0 sample workload
- gpt-oss-20b (free) — $0 sample workload
- gpt-oss-20b — $0.1 sample workload
- gpt-oss-120b — $0.12 sample workload
- GPT-5 Nano (batch) — $0.12 sample workload
OpenAI LLM API Models & Pricing
Browse OpenAI LLM API models with normalized prompt pricing, output pricing, context windows, release dates, and popularity signals.
108Models tracked
108Priced models
2Popular models
0Latest releases
Provider shortlist
Use OpenAI as a model-level shortlist, not a single default choice.
Start from the cost, context, and popularity picks below, then open the model pages or head-to-head comparisons before choosing an API.
Cost pick
gpt-oss-120b (free)
$0 sample workload
Context pick
GPT-5.6 Luna
1.05M context window
Popular pick
GPT-5.6 Luna
#6 popularity signal
When to avoid
Verify model fit
Do not choose by provider name alone. Compare model-level input price, output price, context window, release timing, and current availability before production use.
- GPT-5.6 Luna — 1.05M
- GPT-5.6 Sol — 1.05M
- GPT-5.6 Luna Pro — 1.05M
- GPT-5.6 Luna Pro (batch) — 1.05M
- GPT-5.6 Luna (batch) — 1.05M
OpenAI comparisons
Search OpenAI comparisons| Comparison | Sample Cost Winner | Larger Context | Newest Release |
|---|---|---|---|
| 🔥DeepSeek V4 Flash 0423 vs 🔥GPT-5.6 Luna | DeepSeek V4 Flash 0423 | GPT-5.6 Luna | |
| 🔥DeepSeek V4 Flash 0731 vs 🔥GPT-5.6 Luna | DeepSeek V4 Flash 0731 | DeepSeek V4 Flash 0731 | |
| 🔥Hy3 vs 🔥GPT-5.6 Luna | Hy3 | GPT-5.6 Luna | |
| 🔥MiMo-V2.5 vs 🔥GPT-5.6 Luna | MiMo-V2.5 | Tie | |
| New🔥Ox Alpha vs 🔥GPT-5.6 Luna | Ox Alpha | GPT-5.6 Luna | |
| 🔥GPT-5.6 Luna vs 🔥Nemotron 3 Ultra (free) | Nemotron 3 Ultra (free) | GPT-5.6 Luna | |
| 🔥GPT-5.6 Luna vs 🔥GLM 5.2 | GPT-5.6 Luna | GPT-5.6 Luna | |
| 🔥GPT-5.6 Luna vs 🔥Claude Opus 5 | GPT-5.6 Luna | GPT-5.6 Luna |
Cross-Provider Alternatives
Open alternatives hubUse this shortlist when OpenAI is not a hard requirement and your first constraint is workload cost.
| Alternative | Provider | Sample Cost | Input / 1M | Output / 1M | Context |
|---|---|---|---|---|---|
| New🔥Ox Alpha | stealth | $0 | $0 | $0 | 1.05M |
| 🔥Nemotron 3 Ultra (free) | NVIDIA | $0 | $0 | $0 | 1M |
| 🔥Laguna S 2.1 (free) | Poolside | $0 | $0 | $0 | 262.14K |
| New🔥Nemotron 3.5 Lightning (free) | NVIDIA | $0 | $0 | $0 | 1M |
| NewDots3-Note Preview (free) | Dots Studio | $0 | $0 | $0 | 512K |
| NewLFM2.5-2.6B (free) | LiquidAI | $0 | $0 | $0 | 65.54K |