API cost decision in 10 seconds
Claude Opus 4.7 (Fast) vs 🔥Kimi K2.6
Pick Kimi K2.6 for lower cost; pick Claude Opus 4.7 (Fast) only if the larger context window matters more.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Kimi K2.6 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, Kimi K2.6 is estimated at $2.48 vs $105 for Claude Opus 4.7 (Fast), saving $102.53 (97.6% lower).
Cost-first pickKimi K2.6
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 Kimi K2.6 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
Kimi K2.6 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Claude Opus 4.7 (Fast) | Kimi K2.6 |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Kimi K2.6 | $225 | $5.39 |
| Balanced workload | 1M input + 1M output | Kimi K2.6 | $180 | $4.22 |
| Output-heavy chatbot | 1M input + 5M output | Kimi K2.6 | $780 | $18.18 |
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
Kimi K2.6 has the lower input price, Kimi K2.6 has the lower output price, and Claude Opus 4.7 (Fast) offers the larger context window.
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 Kimi K2.6.
Choose Claude Opus 4.7 (Fast) when you care most about larger context window.
Choose Kimi K2.6 when you care most about lower input-token price, and lower output-token price.
| Feature | Claude Opus 4.7 (Fast) (Anthropic) | 🔥Kimi K2.6 (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 | 2026-04-20 |
| Popularity | #12 |
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
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...
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Kimi K2.6 | On the standard 1M input plus 500K output workload, Kimi K2.6 is estimated at $2.48 vs $105 for Claude Opus 4.7 (Fast), saving $102.53 (97.6% lower). |
| High-volume input processing | Kimi K2.6 | Lower prompt-token price matters most when prompts or retrieved passages dominate the bill. |
| Long responses and chatbots | Kimi K2.6 | 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 and source files. |