MoonshotAI Kimi Latest is $7.4 cheaper per 1M input tokens (74% lower; 3.85x difference).
API cost decision in 10 seconds
Claude Opus 4.8 (Fast) vs MoonshotAI Kimi Latest
Pick MoonshotAI Kimi Latest when budget and context both matter.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick MoonshotAI Kimi Latest when budget and context both matter.
On the standard 1M input plus 500K output workload, MoonshotAI Kimi Latest is estimated at $9.1 vs $35 for Claude Opus 4.8 (Fast), saving $25.9 (74% lower).
Cost-first pickMoonshotAI Kimi Latest
Context-first pickMoonshotAI Kimi Latest
Sample savings$25.974%
10x traffic gap$259
MoonshotAI Kimi Latest is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $259. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
MoonshotAI Kimi Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Claude Opus 4.8 (Fast) | MoonshotAI Kimi Latest |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | MoonshotAI Kimi Latest | $75 | $19.5 |
| Balanced workload | 1M input + 1M output | MoonshotAI Kimi Latest | $60 | $15.6 |
| Output-heavy chatbot | 1M input + 5M output | MoonshotAI Kimi Latest | $260 | $67.6 |
MoonshotAI Kimi Latest is $37 cheaper per 1M output tokens (74% lower; 3.85x difference).
MoonshotAI Kimi Latest has 48.58K more context (1.05x larger).
MoonshotAI Kimi Latest is $25.9 cheaper on the standard workload (74% lower).
Estimate your workload cost
Your Workload Cost
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
MoonshotAI Kimi Latest has the lower input price; MoonshotAI Kimi Latest has the lower output price; MoonshotAI Kimi Latest 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 $35 for Claude Opus 4.8 (Fast) and $9.1 for MoonshotAI Kimi Latest.
Choose Claude Opus 4.8 (Fast) when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
Choose MoonshotAI Kimi Latest when you care most about lower input-token price, lower output-token price, and larger context window.
- On the standard 1M input plus 500K output workload, MoonshotAI Kimi Latest is estimated at $9.1 vs $35 for Claude Opus 4.8 (Fast), saving $25.9 (74% lower).
- MoonshotAI Kimi Latest is $25.9 cheaper on the standard workload (74% lower).
- MoonshotAI Kimi Latest is $7.4 cheaper per 1M input tokens (74% lower; 3.85x difference).
- MoonshotAI Kimi Latest is $37 cheaper per 1M output tokens (74% lower; 3.85x difference).
- MoonshotAI Kimi Latest has 48.58K more context (1.05x larger).
| Feature | Claude Opus 4.8 (Fast) (Anthropic) | MoonshotAI Kimi Latest (MoonshotAI) |
|---|---|---|
| Input Price prompt tokens per 1M | $10 | $2.6 |
| Completion Price per 1M tokens | $50 | $13 |
| Sample Workload Cost 1M input + 500K output | $35 | $9.1 |
| Context Window | 1M | 1.05M |
| Release Date |
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 $9.1 vs $35 for Claude Opus 4.8 (Fast), saving $25.9 (74% 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 | MoonshotAI Kimi Latest | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Claude 3 Haiku can replace Claude Opus 4.8 (Fast) when lower sample workload cost matters most: $0.88.
- Claude Haiku 4.5 (batch) can replace Claude Opus 4.8 (Fast) when lower sample workload cost matters most: $1.75.
- Claude 3.5 Haiku can replace Claude Opus 4.8 (Fast) when lower sample workload cost matters most: $2.8.
- Claude Sonnet 5 (batch) can replace Claude Opus 4.8 (Fast) when lower sample workload cost matters most: $3.5.
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- DeepSeek V4 Flash Latest offers 1.31M context with $0.11 sample workload cost.
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Cheaper alternatives
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Open largest context modelsProvider catalogs
Compare models within provider hubs before choosing a final API vendor.
Open provider hubsAnthropic catalog
Review all tracked Anthropic models before deciding whether this matchup is the right shortlist.
Open Anthropic modelsMoonshotAI catalog
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Open MoonshotAI modelsFast-mode variant of [Opus 4.8](/anthropic/claude-opus-4.8) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 4.8. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode
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