KeyoAPI
GPT-6.1 Sol vs GPT-6 Astra
Choosing between GPT-6.1 Sol and GPT-6 Astra starts with the price of a successful task. Both are listed on KeyoAPI with the same OpenAI-compatible chat endpoint; Sol costs one fifth as much per token in the default billing group. Compare answer quality and retries on your own workload before choosing a default.
GPT 6.1 Sol pricing vs GPT 6 Astra
The rates below were checked against KeyoAPI's public pricing catalog on 2026-10-13. They are KeyoAPI sell rates for the default group, not a statement of OpenAI's official list prices. Other billing groups can apply a multiplier. Cached input, extra modalities and different billing modes require their own rate check.
| Model ID | Input / 1M tokens | Output / 1M tokens | 10,000 input + 2,000 output |
|---|---|---|---|
| gpt-6.1-sol | $0.3677 | $1.8385 | $0.007354 |
| gpt-6-astra | $1.8385 | $9.1925 | $0.036770 |
For 1,000 requests with that same token mix, the planning total is $7.354 for Sol or $36.770 for Astra before retries and additional charges. Cost = input tokens / 1,000,000 × input rate + output tokens / 1,000,000 × output rate. These figures use more precision than the rounded model-guide labels.
When does the higher Astra rate pay off?
Start a Sol evaluation with the tasks you actually ship: product Q&A, structured extraction, code edits or document summaries. Keep the prompts and required outputs fixed. Test Astra on the same cases and measure whether it resolves failures that Sol leaves unfinished. A model name or higher rate alone does not establish a quality advantage.
Score correctness, schema validity, completed tasks, latency and total billed tokens including retries. A fivefold unit-price difference means Astra needs a measurable benefit in your workload to justify routing every request to it. A practical alternative is a Sol default with Astra reserved for cases rejected by your validators; verify that the second attempt improves the result rather than repeating the first failure.
Use the exact API model IDs
Use gpt-6.1-sol for GPT 6.1 Sol (sometimes written GPT Sol 6.1), and gpt-6-astra for Astra. Keep the same endpoint, API key and messages when you compare them. Do not substitute a search phrase such as gpt-sol-6.1 for the catalog ID. Tool calling, context limits and optional parameters should be checked for the specific route before integration.
curl https://www.keyoapi.xyz/v1/chat/completions \
-H "Authorization: Bearer $KEYO_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"gpt-6.1-sol","messages":[{"role":"user","content":"Summarize this project brief in three actionable steps: ship a search feature, evaluate relevance, and report costs."}],"max_tokens":400}'FAQ
Is GPT-6.1 Sol five times cheaper than GPT-6 Astra?
In the checked default-group token rates, yes: both input and output cost one fifth as much. Total task cost can differ because the models may produce different output lengths or require different retry counts.
Which model is better for coding?
The catalog prices do not answer that. Compare accepted patches, passing tests, completion rate and cost per accepted result on the same repository tasks. Use those results to choose your routing policy.
Where can I verify the current GPT 6.1 Sol price?
See the gpt-6.1-sol model page for the model guide and the pricing page for the live catalog. The broader rate table is on the OpenAI API pricing page.