# OpenAI GPT-6.1 Sol API

> GPT-6.1 Sol is OpenAI's upgrade to GPT-6 Sol, introduced at DevDay 2026 and positioned between GPT-6 Astra and GPT-6 Luna, with text and image input. OpenAI says it delivers near-Astra performance for complex coding, computer use and professional work, and recommends comparing it with Astra on your own tasks. Pick it for demanding agentic work at scale when Astra's full depth is not required; it always reasons at least at a low level and has no reasoning-off option.

Source: https://www.sandbase.ai/models/openai/gpt-6.1-sol
API reference: https://www.sandbase.ai/models/openai/gpt-6.1-sol/docs

## Facts

- Provider: OpenAI
- Type: Language model
- Model ID: `openai/gpt-6.1-sol`
- Price: $2 per 1M input tokens, $10 per 1M output tokens
- Context window: 1.1M tokens, up to 128K output tokens
- Capabilities: chat, vision, reasoning, structured output, function calling
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

- Responses API: `POST https://api.sandbase.ai/v1/responses`
- Chat Completions API: `POST https://api.sandbase.ai/v1/chat/completions`

```bash
curl -X POST https://api.sandbase.ai/v1/responses \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "openai/gpt-6.1-sol",
  "input": "Hello",
  "max_output_tokens": 2048
}'
```

## FAQ

### How do I call OpenAI GPT-6.1 Sol through SandBase?

Create a SandBase API key, then send requests with the model ID "openai/gpt-6.1-sol" to Responses API (/v1/responses) or Chat Completions API (/v1/chat/completions) at https://api.sandbase.ai. The request examples on this page show the exact payload.

### How much does OpenAI GPT-6.1 Sol cost?

$2 per 1M input tokens and $10 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

### What is the context window of OpenAI GPT-6.1 Sol?

1.1M tokens of context, with up to 128K output tokens per response.

### How does OpenAI GPT-6.1 Sol score on benchmarks?

OpenAI GPT-6.1 Sol scores 51.8 on the Artificial Analysis Intelligence Index (v4.3), ranking #5 of 83 models on SandBase. Source: Artificial Analysis, measured as GPT-6.1 Sol (Max).

### Which features does OpenAI GPT-6.1 Sol support?

OpenAI GPT-6.1 Sol supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.

### Do I need a separate OpenAI account?

No. One SandBase API key and balance gives you access to OpenAI GPT-6.1 Sol and the other models in the catalog; you do not need to sign up with OpenAI separately.