Lowest GPT-5.6 list price for high volume chat and routing. Use when Sol or Terra would overpay for simple turns.
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Pricing snapshot
USD per 1 million tokens. Verify against the provider source before you lock budget.
| Rate | USD |
|---|---|
| Input / 1M | $0.200 |
| Output / 1M | $1.20 |
| Cached input / 1M | $0.020 |
| Cache write / 1M | $0.250 |
| Batch input / 1M | $0.100 |
| Batch output / 1M | $0.600 |
| Long-context input (≥ 272K prompt) | $0.400 |
| Long-context output (≥ 272K prompt) | $1.80 |
| Long-context cached input (≥ 272K prompt) | $0.040 |
Model details
| Detail | Value |
|---|---|
| Provider | OpenAI |
| Context window | 1.1M |
| Tokenizer | Exact (o200k_base) |
| Last verified | 2026-09-18 |
| API model id | gpt-5.6-luna |
More OpenAI models
Same provider catalog. Use these when you are comparing rates within one stack.
- GPT-5 Mini: $0.250 in / $2.00 out
- GPT-4o mini: $0.150 in / $0.600 out
- GPT-4.1 Nano: $0.100 in / $0.400 out
- GPT-5 Nano: $0.050 in / $0.400 out
- GPT-4.1 Mini: $0.400 in / $1.60 out
- GPT-3.5 Turbo: $0.500 in / $1.50 out
- o1-mini: $1.10 in / $4.40 out
- o3-mini: $1.10 in / $4.40 out
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