---
title: "GPT-6.1 Sol — API access"
description: "GPT-6.1 Sol through Codex: near-Astra performance for complex coding and professional work at a lower cost, 872K maximum context and reasoning from low to max. Official $2/$10 per 1M input/output tokens; $1/$5 with the flat 50% discount."
url: "https://apitoken.sale/models/gpt-6-1-sol"
language: "en"
---
# GPT-6.1 Sol

GPT-6.1 Sol is the newest GPT model: near-Astra quality for complex coding, computer use and professional work at a fraction of the Astra price, on the OpenAI-compatible endpoint. Choose reasoning effort from low to max, send images, and use structured outputs or function tools.

- **Model ID:** `gpt-6.1-sol`
- **Tier:** Balanced
- **Context window:** 872K tokens
- **Max output:** 128K tokens
- **Official price (per 1M):** $2 input / $10 output
- **Your price (per 1M):** input $1, output $5 (flat 50% off)
- **Base URL:** `https://router.apitoken.sale/v1` · **Endpoints:** `POST /v1/responses`, `POST /v1/chat/completions` (Authorization: Bearer)

## Best for

- Complex coding and agentic work close to Astra quality at a lower price.
- Long sessions with repeated context: cached input is $0.10 per 1M.
- Tool calls, image understanding and structured JSON output.

## Notes

- This service uses GPT-6.1 Sol's Codex subscription limits: 872K maximum context. The larger direct OpenAI API window does not apply here.
- Discovery reports 872K total context, 128K output and 744K conservative input.
- Cached input bills at 5% of input, half the GPT-6 Sol rate.
- Above 272K input tokens, the whole request uses 2× input/cache rates and 1.5× output rates. Fast (priority) uses 2× the applicable API rates.
- Reasoning none and Codex-specific ultra delegation are not advertised.

## Call it

```bash
curl https://router.apitoken.sale/v1/responses \
  -H "Authorization: Bearer $APITOKEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "gpt-6.1-sol", "input": "Reply with exactly: connected"}'
```

## FAQ

**What does GPT-6.1 Sol cost?**

Official rates per 1M tokens are $2 input, $0.10 cached input, $2.50 cache write and $10 output. With the normal 50% B2C discount, these are $1, $0.05, $1.25 and $5. OpenKeys uses the official rates.

**How is GPT-6.1 Sol different from GPT-6 Sol?**

GPT-6.1 Sol is a separate, newer model with its own ID. OpenAI positions it close to Astra on complex work. Input and output rates are the same as GPT-6 Sol, cached input is half ($0.10 against $0.20), and reasoning starts at low (no none). Both stay available; choose by model ID.

**How do I select GPT-6.1 Sol?**

Set model to gpt-6.1-sol on https://router.apitoken.sale/v1. Supported reasoning levels are low, medium, high, xhigh and max. Use service_tier priority for Fast.

---
API reference: https://apitoken.sale/md/docs · All models: https://apitoken.sale/md/models