SSyncDev

AI model comparison

Kimi K2.6 vs GPT-5.6 Sol

Compare recorded price, context, output limits, speed, latency, capabilities, and input/output support. Every missing value stays visible, and unsourced benchmarks are excluded.

Kimi K2.6 and GPT-5.6 Sol both come up when teams are choosing a model for production work, and the honest answer usually depends on your workload rather than a leaderboard. This page puts their published specifications side by side — context window, token pricing, supported inputs and outputs — so you can see where they actually differ.

Side-by-sideReviewed by our team

Moonshot AI

Kimi K2.6

Multimodal Kimi workhorse for agent loops, coding tasks, and visual context

Context
262.1K
Max output
262.1K
Input / 1M
$0.95
Output / 1M
$4.00
Output speed
—

Accepts

  • Text input
  • Image input
  • Video input

Produces

  • Text output
Full model profileVendor docs ↗
VS

OpenAI

GPT-5.6 Sol

Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows

Context
1.1M
Max output
128K
Input / 1M
$5.00
Output / 1M
$30.00
Output speed
—

Accepts

  • Text input
  • Image input
  • PDF input

Produces

  • Text output
Full model profileVendor docs ↗

At a glance

Decision snapshot

This is a directional summary of the values recorded in this directory—not a universal quality verdict. Test the finalists on your own prompts before committing.

Where Kimi K2.6 leads in recorded data

  • Maximum output: 262.1K
  • Input price: $0.95
  • Output price: $4.00

Where GPT-5.6 Sol leads in recorded data

  • Context capacity: 1.1M

Context capacity

Higher listed limit

Kimi K2.6:262.1K

GPT-5.6 Sol:1.1M

GPT-5.6 Sol

Maximum output

Higher listed limit

Kimi K2.6:262.1K

GPT-5.6 Sol:128K

Kimi K2.6

Input price

Lower recorded price

Kimi K2.6:$0.95

GPT-5.6 Sol:$5.00

Kimi K2.6

Output price

Lower recorded price

Kimi K2.6:$4.00

GPT-5.6 Sol:$30.00

Kimi K2.6

Output speed

Higher recorded throughput

Kimi K2.6:—

GPT-5.6 Sol:—

No complete comparison

Time to first token

Lower recorded latency

Kimi K2.6:—

GPT-5.6 Sol:—

No complete comparison

Intelligence Index

Higher directory index

Kimi K2.6:—

GPT-5.6 Sol:—

No complete comparison

Evidence

Verified shared benchmarks

A score appears only when both records include a verified source. It is not treated as a universal ranking.

These two models haven't been measured on the same benchmark yet, so there's nothing meaningful to chart. Comparing scores from different tests would tell you more about the tests than the models — the specs and pricing above are the better guide here.

Specifications

Pricing, limits and capabilities

SpecificationKimi K2.6GPT-5.6 Sol
ProviderMoonshot AIOpenAI
Model familykimi-k2gpt-sol
Accepted inputstext, image, videotext, image, pdf
Produced outputstexttext
Context window262.1K1.1MRecorded lead
Max output262.1KRecorded lead128K
Intelligence Index——
Input price / 1M$0.95Recorded lead$5.00
Output price / 1M$4.00Recorded lead$30.00
Output speed——
Time to first token——
Reasoning modeDocumentedDocumented
Tool callingDocumentedDocumented
Image inputDocumentedDocumented
Audio inputNot documentedNot documented
Structured outputDocumentedDocumented
LicenseOpen weightsProprietary
ReleasedApr 21, 2026Jul 9, 2026

Workload guidance

Which model should you choose?

On the published numbers, GPT-5.6 Sol accepts the larger context window and Kimi K2.6 is cheaper per input token. Which matters more depends on whether your bottleneck is document size or spend — the table above has the exact figures.

Provenance

Sources and data limits

Prices and hosted performance can change. SyncDev records source references and clearly separates documented specifications from measured values; confirm commercial terms with the provider before deployment.

Questions people ask

It compares recorded context and output limits, token prices, output speed, time to first token, Intelligence Index, modality support, tool and structured-output capabilities, release information, and only source-linked benchmarks verified on both records. Missing information is labeled rather than inferred.

Compare a different pair

Choose any two approved model records and review them with the same evidence rules.

Open model comparison