Claude Opus 4.8 vs Kimi K2.7 Code
API pricing, context window and capabilities for Claude Opus 4.8 and Kimi K2.7 Code, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersClaude Opus 4.8 wins on Terminal-Bench, on intelligence and on context window. Kimi K2.7 Code wins on price.
Price
Kimi K2.7 Code
Terminal-Bench
Claude Opus 4.8
Intelligence
Claude Opus 4.8
Context window
Claude Opus 4.8
Key takeaways
who wins on what, from the published numbersClaude Opus 4.8 wins
- Larger context window (1M vs 262K)
- Has web search
Kimi K2.7 Code wins
- Cheaper input ($5.00 vs $0.671 /1M)
- Cheaper output ($25.00 vs $3.35 /1M)
- Higher max output (128K vs 262K)
- More serving providers (8 vs 16)
Cheaper overall
Kimi K2.7 Code
$0.671 + $3.35 /1M
Larger context
Claude Opus 4.8
1M
More providers
Kimi K2.7 Code
16 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
| Claude Opus 4.8 | Kimi K2.7 Code | |
|---|---|---|
| Input $/1M | $5.00via Anthropic | $0.671OpenRouter routed quote best |
| Output $/1M | $25.00via Anthropic | $3.35OpenRouter routed quote best |
| Context window | 1M best | 262K |
| Max output | 128K | 262K best |
| Serving providers | 8 | 16 best |
| Date | Released May 28, 2026 | Released Jun 13, 2026 |
Benchmarks
Benchmark scores, side by side| Claude Opus 4.8 | Kimi K2.7 Code | |
|---|---|---|
| Intelligence | 41.8 best | 25.8 |
| Terminal-Bench | 85% best | 67% |
| GPQA Diamond | 92% best | 90% |
| Output speed | 62 t/s | 64 t/s best |
| Latency (TTFT) | 56.16s | 2.75s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude Opus 4.8
via Azure
$50
Kimi K2.7 Code
via OpenRouter
$6.71
Capabilities
feature support, side by side| Feature | Claude Opus 4.8 | Kimi K2.7 Code |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | ✓ | — |
Related comparisons
Frequently asked questions
Which is cheaper, Claude Opus 4.8 or Kimi K2.7 Code?
Kimi K2.7 Code is cheaper for input ($5.00 vs $0.671 per 1M tokens) as an OpenRouter routed quote, while Moonshot lists it at $0.95 per 1M input. Kimi K2.7 Code is cheaper for output ($25.00 vs $3.35 per 1M tokens) as an OpenRouter routed quote, while Moonshot lists it at $4.00 per 1M output.
What is the context window difference between Claude Opus 4.8 and Kimi K2.7 Code?
Claude Opus 4.8 has a 1M-token context window and Kimi K2.7 Code has 262K tokens, so Claude Opus 4.8 can take a larger prompt.
How do Claude Opus 4.8 and Kimi K2.7 Code compare on benchmarks?
On the tracked benchmarks, Claude Opus 4.8 leads on Terminal-Bench, and Claude Opus 4.8 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
Every weekday
AI moves fast. Here's your debrief.
News, analysis, tools, and more.
For people who build with AI