API cost decision in 10 seconds

NewClaude Opus 4.7 (Fast) vs NewMoonshotAI Kimi Latest

Pick MoonshotAI Kimi Latest for lower cost; pick Claude Opus 4.7 (Fast) only if the larger context window matters more.

Page updated: 2026-05-26T10:03:26Z Data confirmed: 2026-05-26T12:43:06Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick MoonshotAI Kimi Latest for lower cost; pick Claude Opus 4.7 (Fast) only if the larger context window matters more.

On the standard 1M input plus 500K output workload, MoonshotAI Kimi Latest is estimated at $2.48 vs $105 for Claude Opus 4.7 (Fast), saving $102.53 (97.6% lower).

Cost-first pickMoonshotAI Kimi Latest

Context-first pickClaude Opus 4.7 (Fast)

Sample savings$102.5397.6%

10x traffic gap$1025.25

Claude Opus 4.7 (Fast) has more context, but MoonshotAI Kimi Latest saves $102.53 on the standard workload. At 10x that traffic, the same price gap is about $1025.25. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

MoonshotAI Kimi Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Claude Opus 4.7 (Fast)	MoonshotAI Kimi Latest
Input-heavy / RAG	5M input + 500K output	MoonshotAI Kimi Latest	$225	$5.39
Balanced workload	1M input + 1M output	MoonshotAI Kimi Latest	$180	$4.22
Output-heavy chatbot	1M input + 5M output	MoonshotAI Kimi Latest	$780	$18.18

Cheaper input MoonshotAI Kimi Latest $30 vs $0.73 / 1M

MoonshotAI Kimi Latest is $29.27 cheaper per 1M input tokens (97.6% lower; 41.1x difference).

Cheaper output MoonshotAI Kimi Latest $150 vs $3.49 / 1M

MoonshotAI Kimi Latest is $146.51 cheaper per 1M output tokens (97.7% lower; 43x difference).

Larger context Claude Opus 4.7 (Fast) 1M vs 262.14K

Claude Opus 4.7 (Fast) has 737.86K more context (3.81x larger).

Sample workload MoonshotAI Kimi Latest $105 vs $2.48

MoonshotAI Kimi Latest is $102.53 cheaper on the standard workload (97.6% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Claude Opus 4.7 (Fast) Calculating… Estimated API cost

MoonshotAI Kimi Latest 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

MoonshotAI Kimi Latest has the lower input price; MoonshotAI Kimi Latest has the lower output price; Claude Opus 4.7 (Fast) offers the larger context window. For the 1M input plus 500K output sample, MoonshotAI Kimi Latest is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $105 for Claude Opus 4.7 (Fast) and $2.48 for MoonshotAI Kimi Latest.

Best Fit

Choose Claude Opus 4.7 (Fast) when you care most about larger context window.

Choose MoonshotAI Kimi Latest when you care most about lower input-token price, and lower output-token price.

Decision Notes

On the standard 1M input plus 500K output workload, MoonshotAI Kimi Latest is estimated at $2.48 vs $105 for Claude Opus 4.7 (Fast), saving $102.53 (97.6% lower).
MoonshotAI Kimi Latest is $102.53 cheaper on the standard workload (97.6% lower).
MoonshotAI Kimi Latest is $29.27 cheaper per 1M input tokens (97.6% lower; 41.1x difference).
MoonshotAI Kimi Latest is $146.51 cheaper per 1M output tokens (97.7% lower; 43x difference).
Claude Opus 4.7 (Fast) has 737.86K more context (3.81x larger).

Head-to-Head Specs

Feature	NewClaude Opus 4.7 (Fast) (Anthropic)	NewMoonshotAI Kimi Latest (MoonshotAI)
Input Price prompt tokens per 1M	$30	$0.73
Completion Price per 1M tokens	$150	$3.49
Sample Workload Cost 1M input + 500K output	$105	$2.48
Context Window	1M	262.14K
Release Date	2026-05-12	2026-04-27

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	MoonshotAI Kimi Latest	On the standard 1M input plus 500K output workload, MoonshotAI Kimi Latest is estimated at $2.48 vs $105 for Claude Opus 4.7 (Fast), saving $102.53 (97.6% lower).
High-volume input processing	MoonshotAI Kimi Latest	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	MoonshotAI Kimi Latest	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Claude Opus 4.7 (Fast)	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Claude 3 Haiku can replace Claude Opus 4.7 (Fast) when lower sample workload cost matters most: $0.88.
Claude 3.5 Haiku can replace Claude Opus 4.7 (Fast) when lower sample workload cost matters most: $2.8.
Anthropic Claude Haiku Latest can replace Claude Opus 4.7 (Fast) when lower sample workload cost matters most: $3.5.
Claude Haiku 4.5 can replace Claude Opus 4.7 (Fast) when lower sample workload cost matters most: $3.5.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
GPT-5.5 offers 1.05M context with $20 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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Anthropic catalog

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

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MoonshotAI catalog

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Claude Opus 4.7 (Fast)

Fast-mode variant of [Opus 4.7](/anthropic/claude-opus-4.7) - identical capabilities with higher output speed at premium 6x pricing. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode

MoonshotAI Kimi Latest

This model always redirects to the latest model in the MoonshotAI Kimi family.