GPT-5.6 Sol - Kyma API

Overview

OpenAI’s top 5.6 tier. 1.05M context, vision, file input; the rate doubles above 272K prompt tokens.

Specs

Field	Value
Model ID	`gpt-5.6-sol`
Best for	Hardest reasoning and long-horizon agentic work
Context window	1.05M
Max output tokens	128K
Input modalities	Text, Image, File
Output modalities	Text
Tool calling	Yes
Structured outputs	Yes
Prompt caching	Yes
Vision	Yes
Reasoning	Yes
Speed	Medium
Cost band	Premium
Release stage	Stable

Pricing

	Per 1M tokens
Input	$3.151
Output	$15.753

Promotional rate, promised through 2026-11-21. The list rate it returns to is $5.40 input and $27.00 output per 1M tokens. Above a long prompt this model costs more per token, because the infrastructure serving it charges more there. The threshold is on the prompt, so you know which rate applies before you send.

Prompt length	Input	Output
Standard	$3.151	$15.753
Above 272,000 tokens	$5.40	$20.25

Example

from openai import OpenAI

client = OpenAI(base_url="https://kymaapi.com/v1", api_key="kyma-...")

response = client.chat.completions.create(
    model="gpt-5.6-sol",
    messages=[{"role": "user", "content": "..."}],
    tools=[...],  # function calling supported
)

Agent query example

Ask the API which models fit, instead of hardcoding an id:

curl "https://kymaapi.com/v1/models?recommended_for=chat&tools=true&quality_tier=frontier-open"

​Overview

​Specs

​Pricing

​Example

​Agent query example

Overview

Specs

Pricing

Example

Agent query example