API cost decision in 10 seconds

Grok Build 0.1 vs Kimi K2.6

Pick Grok Build 0.1 for lower cost; pick Kimi K2.6 only if the larger context window matters more.

Page updated: 2026-08-23T01:07:54Z Data confirmed: 2026-08-23T11:07:50Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Grok Build 0.1 for lower cost; pick Kimi K2.6 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Grok Build 0.1 is estimated at $2 vs $2.95 for Kimi K2.6, saving $0.95 (32.2% lower).

Cost-first pickGrok Build 0.1

Context-first pickKimi K2.6

Sample savings$0.9532.2%

10x traffic gap$9.5

Kimi K2.6 has more context, but Grok Build 0.1 saves $0.95 on the standard workload. At 10x that traffic, the same price gap is about $9.5. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Grok Build 0.1 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Grok Build 0.1	Kimi K2.6
Input-heavy / RAG	5M input + 500K output	Grok Build 0.1	$6	$6.75
Balanced workload	1M input + 1M output	Grok Build 0.1	$3	$4.95
Output-heavy chatbot	1M input + 5M output	Grok Build 0.1	$11	$20.95

Cheaper input Kimi K2.6 $1 vs $0.95 / 1M

Kimi K2.6 is $0.05 cheaper per 1M input tokens (5% lower; 1.05x difference).

Cheaper output Grok Build 0.1 $2 vs $4 / 1M

Grok Build 0.1 is $2 cheaper per 1M output tokens (50% lower; 2x difference).

Larger context Kimi K2.6 256K vs 262.14K

Kimi K2.6 has 6.14K more context (1.02x larger).

Sample workload Grok Build 0.1 $2 vs $2.95

Grok Build 0.1 is $0.95 cheaper on the standard workload (32.2% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Grok Build 0.1 Calculating… Estimated API cost

Kimi K2.6 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

Kimi K2.6 has the lower input price; Grok Build 0.1 has the lower output price; Kimi K2.6 offers the larger context window. For the 1M input plus 500K output sample, Grok Build 0.1 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $2 for Grok Build 0.1 and $2.95 for Kimi K2.6.

Best Fit

Choose Grok Build 0.1 when you care most about lower output-token price.

Choose Kimi K2.6 when you care most about lower input-token price, and larger context window.

Decision Notes

On the standard 1M input plus 500K output workload, Grok Build 0.1 is estimated at $2 vs $2.95 for Kimi K2.6, saving $0.95 (32.2% lower).
Grok Build 0.1 is $0.95 cheaper on the standard workload (32.2% lower).
Kimi K2.6 is $0.05 cheaper per 1M input tokens (5% lower; 1.05x difference).
Grok Build 0.1 is $2 cheaper per 1M output tokens (50% lower; 2x difference).
Kimi K2.6 has 6.14K more context (1.02x larger).

Head-to-Head Specs

Feature	Grok Build 0.1 (SpaceXAI)	Kimi K2.6 (MoonshotAI)
Input Price prompt tokens per 1M	$1	$0.95
Completion Price per 1M tokens	$2	$4
Sample Workload Cost 1M input + 500K output	$2	$2.95
Context Window	256K	262.14K
Release Date	2026-05-20	2026-04-20

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Grok Build 0.1	On the standard 1M input plus 500K output workload, Grok Build 0.1 is estimated at $2 vs $2.95 for Kimi K2.6, saving $0.95 (32.2% lower).
High-volume input processing	Kimi K2.6	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Grok Build 0.1	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Kimi K2.6	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Kimi K2.7 Code (free) can replace Kimi K2.6 when lower sample workload cost matters most: $0.
Kimi K2.6 (free) can replace Kimi K2.6 when lower sample workload cost matters most: $0.
Kimi K2.5 can replace Kimi K2.6 when lower sample workload cost matters most: $1.57.
Kimi K2 0711 can replace Kimi K2.6 when lower sample workload cost matters most: $1.72.

Larger context near this budget

Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
DeepSeek V4 Flash 0731 offers 1.31M context with $0.17 sample workload cost.
DeepSeek V4 Flash Latest offers 1.31M context with $0.11 sample workload cost.

Popular competitors

DeepSeek V4 Flash 0731 · DeepSeek · #1
MiMo-V2.5 · Xiaomi · #2
Hy3 · Tencent · #3
Ox Alpha · stealth · #4

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

SpaceXAI catalog

Review all tracked SpaceXAI models before deciding whether this matchup is the right shortlist.

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MoonshotAI catalog

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Grok Build 0.1

Grok Build 0.1 is SpaceXAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...

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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...