Claude Haiku 4.5 vs Kimi K2.5
Complete pricing and performance comparison between Anthropic's Claude Haiku 4.5 and Moonshot's Kimi K2.5.
Quick Verdict
Cheaper
Kimi K2.5
1.7x cheaper input, 1.7x cheaper output
Larger Context
Claude Haiku 4.5
200K vs 128K
Higher Quality
Kimi K2.5
Score: 47 vs 31
Faster
Claude Haiku 4.5
125 vs 46 tok/s
Pricing Comparison
| Spec | Claude Haiku 4.5 | Kimi K2.5 | Difference |
|---|---|---|---|
| Provider | Anthropic | Moonshot | |
| Input / 1M tokens | $1 | $0.6 | Kimi K2.5 is 40% more expensive |
| Output / 1M tokens | $5 | $3 | Kimi K2.5 is 40% more expensive |
| Context Window | 200K | 128K | 2x difference |
| Max Output | 8K | 33K |
Performance Benchmarks
| Metric | Claude Haiku 4.5 | Kimi K2.5 | Winner |
|---|---|---|---|
| Quality Index | 31 | 47 | Kimi K2.5 |
| Output Speed | 125 tok/s | 46 tok/s | Claude Haiku 4.5 |
| Time to First Token | 0.41s | 1.05s | Claude Haiku 4.5 |
| Value (Quality/$) | 31.1 | 78.0 | Higher = better value |
Benchmark data from Artificial Analysis. Quality Index is a composite score across reasoning, coding, and knowledge tasks.
Cost at Scale
Estimated cost at different usage levels (3:1 input-to-output token ratio, typical for chat).
| Usage | Claude Haiku 4.5 | Kimi K2.5 | Savings |
|---|---|---|---|
Single request 1K in / 300 out | $0.0025 | $0.0015 | Same |
10 requests 10K in / 3K out | $0.025 | $0.015 | Kimi K2.5 saves $0.010 |
100 requests 100K in / 30K out | $0.250 | $0.150 | Kimi K2.5 saves $0.100 |
1,000 requests 1M in / 300K out | $2.50 | $1.50 | Kimi K2.5 saves $1.00 |
10,000 requests 10M in / 3M out | $25.00 | $15.00 | Kimi K2.5 saves $10.00 |
1M requests/mo 1B in / 300M out | $2500.00 | $1500.00 | Kimi K2.5 saves $1000.00 |
Pros & Cons
Claude Haiku 4.5 Strengths
- +Larger context window (200K vs 128K)
- +Faster output (125 vs 46 tok/s)
- +Lower latency (faster first token)
Kimi K2.5 Strengths
- +Cheaper input tokens
- +Cheaper output tokens
- +Higher max output tokens
- +Higher quality score (47 vs 31)
When to Use Each Model
Choose Claude Haiku 4.5 for
- →Long documents, large codebases, or multi-turn conversations
- →Real-time applications, chat, or autocomplete
Choose Kimi K2.5 for
- →Budget-conscious projects where cost is the primary factor
- →Generating long-form content or detailed code
- →Tasks requiring maximum accuracy and reasoning
Frequently Asked Questions
Which is cheaper, Claude Haiku 4.5 or Kimi K2.5?
For input tokens, Kimi K2.5 is 1.7x cheaper at $0.6/1M tokens. For output tokens, Kimi K2.5 is 1.7x cheaper at $3/1M tokens. At typical usage (1M input + 300K output), Claude Haiku 4.5 costs $2.50 vs Kimi K2.5 at $1.50.
What's the context window difference?
Claude Haiku 4.5 supports 200K context (200,000 tokens), while Kimi K2.5 supports 128K (128,000 tokens). Claude Haiku 4.5 can handle 2x more context in a single request.
Which model has better benchmarks?
Quality Index: Claude Haiku 4.5 scores 31 vs Kimi K2.5 at 47. Speed: Claude Haiku 4.5 generates 125 tok/s vs Kimi K2.5 at 46 tok/s. Time to first token: Claude Haiku 4.5 at 0.41s vs Kimi K2.5 at 1.05s.
When should I choose Claude Haiku 4.5 over Kimi K2.5?
Choose Claude Haiku 4.5 when you need: Larger context window (200K vs 128K), Faster output (125 vs 46 tok/s), Lower latency (faster first token). Choose Kimi K2.5 when you need: Cheaper input tokens, Cheaper output tokens, Higher max output tokens, Higher quality score (47 vs 31).
How much would 10,000 API requests cost?
At 1K input + 300 output tokens per request (typical chat): Claude Haiku 4.5 = $25.00, Kimi K2.5 = $15.00. At 10K input + 1K output per request (longer conversations): Claude Haiku 4.5 = $150.00, Kimi K2.5 = $90.00.