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Auto Code vs Kimi K3.1 Pro

Detailed technical comparison between Auto Code (OpenRouter) and Kimi K3.1 Pro (Moonshot AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

Auto Code: 1 WinvsKimi K3.1 Pro: 5 Wins
Context Leader

Auto Code

2,000,000 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Tie

Equal Pricing
OpenRouteractive

Auto Code

Auto Code is OpenRouter’s router built specifically for coding agents and harnesses. It uses the same routing engine as the [Auto Router](https://openrouter.ai/openrouter/auto), with every request treated as part of an...

View Auto Code Full Specs →
Moonshot AIactive

Kimi K3.1 Pro

Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...

View Kimi K3.1 Pro Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationAuto CodeKimi K3.1 Pro
ProviderOpenRouterMoonshot AI
Context Window2,000,000 tokens🏆1,048,576 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelmanaged apimanaged api
Production StabilityNot verifiedNot verified
API AvailableYesYes
Released Date2026-11-052026-10-23

API Pricing Comparison

Input Price per Million Tokens

Auto Code

Not listed

Kimi K3.1 Pro

$2.00

Output Price per Million Tokens

Auto Code

Not listed

Kimi K3.1 Pro

$10.00

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
81.2%vs85.6%+4.4% Kimi K3.1 Pro
Auto Code
Kimi K3.1 Pro 🏆
HumanEvalPython coding & logic synthesis
91.4%vs84.8%+6.6% Auto Code
Auto Code 🏆
Kimi K3.1 Pro
MATHComplex mathematical problem solving
56.6%vs66.0%+9.4% Kimi K3.1 Pro
Auto Code
Kimi K3.1 Pro 🏆
GPQAGraduate-level expert reasoning
38.6%vs47.4%+8.8% Kimi K3.1 Pro
Auto Code
Kimi K3.1 Pro 🏆
HellaSwagCommonsense reasoning and inference
80.8%vs86.6%+5.8% Kimi K3.1 Pro
Auto Code
Kimi K3.1 Pro 🏆
MT-BenchMulti-turn conversation flow quality
8.3%vs8.9%+0.6% Kimi K3.1 Pro
Auto Code
Kimi K3.1 Pro 🏆

Auto Code Quirks & Gotchas

No developer gotchas reported.

Kimi K3.1 Pro Quirks & Gotchas

No developer gotchas reported.

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