LLM Gateway / Compare / GPT-6.1 Sol vs GPT-6.1 Terra
Both OpenAI

GPT-6.1 Sol vs GPT-6.1 Terra

GPT-6.1 Terra costs less: $2.50 less per 1M input tokens and $9.38 less per 1M output tokens. Both take images, call tools, return JSON and reason before answering. Both read up to 1.05M tokens at once. Both run on one withConflux key.

Try both on one keyCheck my bill free
Pick GPT-6.1 Sol if
  • your own tests show better answers for your work
Pick GPT-6.1 Terra if
  • output is a big part of your bill (chat, agents): $9.38 vs $18.75 per 1M
  • your prompts are long (documents, big context): $2.50 vs $5.00 per 1M in
Side by side

The numbers

GPT-6.1 SolGPT-6.1 Terra
Input, per 1M tokens$5.00$2.50
Output, per 1M tokens$18.75$9.38
Context1.05M tokens1.05M tokens
Can usevision, tools, JSON, reasoningvision, tools, JSON, reasoning
Typical answer, our gatewayNot measured yetNot measured yet
First tokenNot measured yetNot measured yet

Green = better on that row. Speed for every model: API speed.

What a month costs

Three real workloads

At your price on withConflux. Change the numbers in the calculator below to match your traffic.

WorkloadGPT-6.1 SolGPT-6.1 Terra
Support chatbot
30,000 messages a month, 1,500 tokens in and 300 out each
$393.75$196.88
Coding agent
2,000 tasks a month, 40,000 tokens in and 4,000 out each
$550.00$275.00
Document summaries
10,000 documents a month, 8,000 tokens in and 600 out each
$512.50$256.25

What a month costs

30,000 messages, about 1,500 tokens in and 300 out each. Change the numbers to match yours.
GPT-6.1 Sol
$393.75
GPT-6.1 Terra
$196.88
At your price on Managed: the provider’s price plus a small margin. With your own keys you pay the provider directly, plus €19 a month for the gateway.
Switching

One word in your code

from openai import OpenAI
client = OpenAI(base_url="https://withconflux.com/v1", api_key="cflx_live_...")
client.chat.completions.create(model="gpt-6.1-terra", messages=[...])   # or "gpt-6.1-sol"

Run both and see for yourself

Sign up free and call GPT-6.1 Sol and GPT-6.1 Terra with the same key. Each call shows its cost per key.

Questions

GPT-6.1 Sol vs GPT-6.1 Terra, answered

Which one is cheaper?

GPT-6.1 Terra is cheaper for both input and output.

Can I switch without changing my code?

On withConflux, yes: both are behind the same OpenAI-compatible endpoint. You change the model name.

Do I need an OpenAI account?

No. One withConflux key calls both. With your own keys (BYOK) you can use your accounts instead, for €19 a month.

How fresh are these numbers?

Prices are read from our live model list. Speed is recalculated every hour from the last 7 days. The date is on the page.

Keep comparing

Related

GPT-6.1 Sol guideGPT-6.1 Terra guideAll pairsAPI speed
We use a single analytics cookie to understand traffic to this site. Nothing loads until you choose. See our Privacy Policy.
GPT-6.1 Sol vs GPT-6.1 Terra: price, speed and which to pick — withConflux