GPT-6.1 Sol API pricing — what it really costs
GPT-6.1 Sol (OpenAI) costs $2 per 1M input tokens and $10 per 1M output tokens — with prompt caching, cached input drops to $0.100. Prices verified 2026-10-17; we track the price you are actually billed today, including promotional rates.
Price per 1M tokens
| Input | Output | Cached input |
|---|---|---|
| $2 | $10 | $0.100 |
Real monthly costs on GPT-6.1 Sol
Three realistic workloads, computed from the prices above (cached share billed at the cache-read rate where the provider offers one):
Customer-support chatbot
$6.72/mo
2M input + 0.5M output tokens/month, 60% of input served from prompt cache
RAG / document Q&A
$23.40/mo
20M input + 1M output tokens/month, 70% cached (shared context)
Agentic coding assistant
$74.00/mo
50M input + 5M output tokens/month, 80% cached (long sessions)
Want exact numbers for your usage? Open the calculator — same verified prices, your token volumes.
Compare GPT-6.1 Sol
- GPT-6.1 Sol vs Claude Sonnet 5.5 — which is cheaper?
- GPT-6.1 Sol vs Gemini 4 Argon — which is cheaper?
- GPT-6.1 Sol vs GPT-6 Astra — which is cheaper?
- GPT-6.1 Sol vs GPT-6 Luna — which is cheaper?
- GPT-6.1 Sol vs GPT-5.4 — which is cheaper?
FAQ
How much does the GPT-6.1 Sol API cost?
GPT-6.1 Sol costs $2 per 1M input tokens and $10 per 1M output tokens. Cached input tokens cost $0.100 per 1M. Pricing verified 2026-10-17.
What does a typical workload cost on GPT-6.1 Sol?
Customer-support chatbot: about $6.72/month (2M input + 0.5M output tokens/month, 60% of input served from prompt cache). RAG / document Q&A: about $23.40/month (20M input + 1M output tokens/month, 70% cached (shared context)). Agentic coding assistant: about $74.00/month (50M input + 5M output tokens/month, 80% cached (long sessions))
Is GPT-6.1 Sol expensive compared to other models?
GPT-6.1 Sol ranks #11 of 23 models by blended price in our comparison. The cheapest tracked models are Claude Haiku 5.5 and GPT-6 Luna at $0.100/$0.500 per 1M tokens.