OpenAI · 2026-07-09
GPT-5.6 Sol pricing
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Prices from OpenRouter’s models API, updated October 29, 2026
What GPT-5.6 Sol costs a month
| Workload | Standard | Batch API |
|---|---|---|
| Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out | $420 | $210 |
| Daily summaries: 10,000 a day, 3,000 tokens in, 300 out | $5,400 | $2,700 |
| Coding agent: 400 calls a day, 60,000 tokens in (80% cached), 2,000 out | $1,286 | $758 |
30 days. Cached input billed at the cache-read price. Use your own numbers.
Cheaper models with a similar context window
| Model | Provider | Input /1M | Output /1M | Cache read /1M | Context | Chatbot, per month* |
|---|---|---|---|---|---|---|
| Ling 3.0 Flash VL | inclusionai | $0.06 | $0.18 | $0.012 | 131K | $4.86 |
| Ternary Bonsai 2 9B | prism-ml | $0.08 | $0.13 | $0.04 | 262K | $5.16 |
| Nex-N2.5-Pro | nex-agi | $0.075 | $0.25 | $0.015 | 262K | $6.38 |
| DeepSeek V4.1 Flash | DeepSeek | $0.045 | $0.50 | $0.006 | 1.05M | $8.03 |
| MiMo-V2.6-Flash | xiaomi | $0.14 | $0.28 | $0.0028 | 1.05M | $9.66 |
* Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out, 30 days, no caching. Prices in US dollars per 1M tokens.
Cheaper isn’t automatically as good. Glow’s GlowBench scores models on your kind of task before suggesting a swap.
Other GPT models
| Model | Input /1M | Output /1M | Cache read /1M | Context | Chatbot, per month* |
|---|---|---|---|---|---|
| GPT-6.1 Terra | $1 | $5 | $0.05 | 1.05M | $105 |
| GPT-6.1 Terra Pro | $1 | $5 | $0.05 | 1.05M | $105 |
| GPT-6.1 Sol | $2 | $10 | $0.10 | 1.05M | $210 |
| GPT-6.1 Sol Pro | $2 | $10 | $0.10 | 1.05M | $210 |
| GPT-6 Luna | $0.10 | $0.50 | $0.01 | 1.05M | $10.50 |
| GPT-6 Luna Pro | $0.10 | $0.50 | $0.01 | 1.05M | $10.50 |
* Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out, 30 days, no caching. Prices in US dollars per 1M tokens.
Related
GPT-5.6 Sol: questions
How much does GPT-5.6 Sol cost?
$4 per 1M input tokens and $20 per 1M output tokens, with cached input at $0.40, or $2 / $10 through the batch API. A 1,000-token prompt with a 500-token answer costs about $0.014.
What is GPT-5.6 Sol’s context window?
1,050,000 tokens, with up to 128,000 output tokens per response.
Is there a cheaper alternative to GPT-5.6 Sol?
Ling 3.0 Flash VL costs $0.06 in and $0.18 out per 1M tokens with a similar context window. Whether it matches GPT-5.6 Sol’s quality depends on the task: test it on your own prompts (Glow’s GlowBench does this per task).
Know what each model really costs you.
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