API cost decision in 10 seconds

NewGemini 3.1 Flash Lite vs KAT-Coder-Pro V2

Pick KAT-Coder-Pro V2 for lower cost; pick Gemini 3.1 Flash Lite only if the larger context window matters more.

Page updated: 2026-05-26T10:03:26Z Data confirmed: 2026-05-26T12:38:15Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick KAT-Coder-Pro V2 for lower cost; pick Gemini 3.1 Flash Lite only if the larger context window matters more.

On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $1 for Gemini 3.1 Flash Lite, saving $0.1 (10% lower).

Cost-first pickKAT-Coder-Pro V2

Context-first pickGemini 3.1 Flash Lite

Sample savings$0.110%

10x traffic gap$1

Gemini 3.1 Flash Lite has more context, but KAT-Coder-Pro V2 saves $0.1 on the standard workload. At 10x that traffic, the same price gap is about $1. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Cost winner changes by workload shape: input-heavy / RAG favors Gemini 3.1 Flash Lite, balanced workload favors KAT-Coder-Pro V2, and output-heavy chatbot favors KAT-Coder-Pro V2.

Workload shape	Token mix	Better pick	Gemini 3.1 Flash Lite	KAT-Coder-Pro V2
Input-heavy / RAG	5M input + 500K output	Gemini 3.1 Flash Lite	$2	$2.1
Balanced workload	1M input + 1M output	KAT-Coder-Pro V2	$1.75	$1.5
Output-heavy chatbot	1M input + 5M output	KAT-Coder-Pro V2	$7.75	$6.3

Cheaper input Gemini 3.1 Flash Lite $0.25 vs $0.3 / 1M

Gemini 3.1 Flash Lite is $0.05 cheaper per 1M input tokens (16.7% lower; 1.2x difference).

Cheaper output KAT-Coder-Pro V2 $1.5 vs $1.2 / 1M

KAT-Coder-Pro V2 is $0.3 cheaper per 1M output tokens (20% lower; 1.25x difference).

Larger context Gemini 3.1 Flash Lite 1.05M vs 256K

Gemini 3.1 Flash Lite has 792.58K more context (4.1x larger).

Sample workload KAT-Coder-Pro V2 $1 vs $0.9

KAT-Coder-Pro V2 is $0.1 cheaper on the standard workload (10% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Gemini 3.1 Flash Lite Calculating… Estimated API cost

KAT-Coder-Pro V2 Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Gemini 3.1 Flash Lite has the lower input price; KAT-Coder-Pro V2 has the lower output price; Gemini 3.1 Flash Lite offers the larger context window. For the 1M input plus 500K output sample, KAT-Coder-Pro V2 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1 for Gemini 3.1 Flash Lite and $0.9 for KAT-Coder-Pro V2.

Best Fit

Choose Gemini 3.1 Flash Lite when you care most about lower input-token price, and larger context window.

Choose KAT-Coder-Pro V2 when you care most about lower output-token price.

Decision Notes

On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $1 for Gemini 3.1 Flash Lite, saving $0.1 (10% lower).
KAT-Coder-Pro V2 is $0.1 cheaper on the standard workload (10% lower).
Gemini 3.1 Flash Lite is $0.05 cheaper per 1M input tokens (16.7% lower; 1.2x difference).
KAT-Coder-Pro V2 is $0.3 cheaper per 1M output tokens (20% lower; 1.25x difference).
Gemini 3.1 Flash Lite has 792.58K more context (4.1x larger).

Head-to-Head Specs

Feature	NewGemini 3.1 Flash Lite (Google)	KAT-Coder-Pro V2 (Kwaipilot)
Input Price prompt tokens per 1M	$0.25	$0.3
Completion Price per 1M tokens	$1.5	$1.2
Sample Workload Cost 1M input + 500K output	$1	$0.9
Context Window	1.05M	256K
Release Date	2026-05-07	2026-03-27

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	KAT-Coder-Pro V2	On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $1 for Gemini 3.1 Flash Lite, saving $0.1 (10% lower).
High-volume input processing	Gemini 3.1 Flash Lite	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	KAT-Coder-Pro V2	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Gemini 3.1 Flash Lite	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Gemma 4 26B A4B (free) can replace Gemini 3.1 Flash Lite when lower sample workload cost matters most: $0.
Gemma 4 31B (free) can replace Gemini 3.1 Flash Lite when lower sample workload cost matters most: $0.
Lyria 3 Pro Preview can replace Gemini 3.1 Flash Lite when lower sample workload cost matters most: $0.
Lyria 3 Clip Preview can replace Gemini 3.1 Flash Lite when lower sample workload cost matters most: $0.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Owl Alpha offers 1.05M context with $0 sample workload cost.

Popular competitors

DeepSeek V4 Flash · DeepSeek · #1
Hy3 preview · Tencent · #2
Claude Opus 4.7 · Anthropic · #3
Claude Sonnet 4.6 · Anthropic · #4

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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Google catalog

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Kwaipilot catalog

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Gemini 3.1 Flash Lite

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KAT-Coder-Pro V2 is the latest high-performance model in KwaiKAT’s KAT-Coder series, designed for complex enterprise-grade software engineering and SaaS integration. It builds on the agentic coding strengths of earlier versions,...