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Kimi K2.6 vs o3

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Kimi K2.6 and o3.

Moonshot AI

Kimi K2.6

Kimi K2.6 is Moonshot AI's next-generation multimodal model, designed for long-horizon coding, coding-driven UI/UX generation, and multi-agent orchestration. It handles complex end-to-end coding tasks across Python, Rust, and Go, and...

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OpenAI

o3

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....

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Technical Specifications

SpecificationKimi K2.6o3
ProviderMoonshot AIOpenAI
Context Window262,144 tokens200,000 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2026-04-202025-04-16

API Pricing Comparison

Input Price per Million Tokens

Kimi K2.6

$0.66

o3

$2.00

Output Price per Million Tokens

Kimi K2.6

$3.41

o3

$8.00

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
8420.0%vsN/A
Kimi K2.6
o3
HumanEvalPython coding & logic synthesis
8500.0%vsN/A
Kimi K2.6
o3
MATHComplex mathematical problem solving
6400.0%vsN/A
Kimi K2.6
o3
GPQAGraduate-level expert reasoning
4300.0%vsN/A
Kimi K2.6
o3
HellaSwagCommonsense reasoning and inference
8500.0%vsN/A
Kimi K2.6
o3
MT-BenchMulti-turn conversation flow quality
890.0%vsN/A
Kimi K2.6
o3

Kimi K2.6 Quirks & Gotchas

No developer gotchas reported.

o3 Quirks & Gotchas

No developer gotchas reported.