AI model comparison
Claude Haiku 5.5 vs Kimi K3
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
Anthropic
Claude Haiku 5.5
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use.
- Input / 1M
- $0.10
- Output / 1M
- $0.50
- Context
- 1M
Moonshot AI
Kimi K3
Kimi K3 is a 2.8T parameter open-weight multimodal reasoning model from Moonshot AI.
- Input / 1M
- $0.90
- Output / 1M
- $14
- Context
- 1.05M
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
Claude Haiku 5.5
19.6x cheaper for a typical chat
Higher intelligence score
Kimi K3
43.6 vs 43.4 on Artificial Analysis
Larger context window
Kimi K3
1.05M vs 1M tokens
Newer release
Claude Haiku 5.5
Released October 7, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
Claude Haiku 5.543.4Coding index
Claude Haiku 5.5Not availableAgentic index
Claude Haiku 5.5Not availablePricing
Claude Haiku 5.5 vs Kimi K3 API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | Claude Haiku 5.5 | |
|---|---|---|
| Input tokensPer 1M tokens | $0.10 | $0.90 |
| Output tokensPer 1M tokens | $0.50 | $14 |
| Cached input (read)Per 1M tokens | $0.01 | $0.60 |
| Cache writePer 1M tokens | $0.13 | Not available |
| Long-context pricingPer 1M tokens, for very long prompts | $0.50 in / $2.50 out above 100K | Same rate at any length |
| Web searchPer request | $0.01 | Not available |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
Claude Haiku 5.5$0.45Coding task
30K in, 4K out
Claude Haiku 5.5$5$2.30 cachedLong document summary
150K in, 2K out
Claude Haiku 5.5$16$2.50 cachedSpecs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | Claude Haiku 5.5 | |
|---|---|---|
| Context window | 1M tokens | 1.05M tokens |
| Max output | 128K tokens | 944K tokens |
| Input types | File, Image, Text | Image, Text, Video |
| Output types | Text | Text |
| Reasoning effort levels | Max, Extra high, High, Medium, Low | Max, High, Low |
| Default reasoning effort | Medium | Max |
| Release date | October 7, 2026 | July 16, 2026 |
Features
Supported features
API features available for each model.
| Metric | Claude Haiku 5.5 | |
|---|---|---|
| Tool calling | Supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Supported | Supported |
| Reasoning | Supported | Supported |
| Temperature | Not supported | Supported |
| Stop sequences | Supported | Supported |
| Deterministic seed | Not supported | Supported |
| Verbosity control | Supported | Not supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
Claude Haiku 5.5View full model details- Claude Haiku 5.5 vs MiMo-V2.6-Pro
- Claude Haiku 5.5 vs GLM 5.3
- Claude Haiku 5.5 vs GLM 5.3 Flash
- Claude Haiku 5.5 vs Gemini 3.8 Flash
- Claude Haiku 5.5 vs DeepSeek V4.1 Flash
- Claude Haiku 5.5 vs MiMo-V2.6-Flash
- Claude Haiku 5.5 vs GPT-6 Luna
- Claude Haiku 5.5 vs DeepSeek V4 Flash 0731
- Claude Haiku 5.5 vs GPT-5.6 Luna
- Claude Haiku 5.5 vs GPT-6 Luna Pro
- Kimi K3 vs Claude Opus 5.5
- Kimi K3 vs Claude Fable 5.1
- Kimi K3 vs GPT-6 Astra
- Kimi K3 vs GPT-6.1 Sol
- Kimi K3 vs Claude Opus 5
- Kimi K3 vs Claude Fable 5
- Kimi K3 vs GLM 5.3
- Kimi K3 vs GPT-6 Sol
- Kimi K3 vs GPT-5.6 Sol
- Kimi K3 vs Gemini 3.8 Flash
- Kimi K3 vs Grok 4.7
- Kimi K3 vs Qwen3.8 Max (0902)
- Kimi K3 vs Grok 4.6
- Kimi K3 vs GPT-5.6 Terra
- Kimi K3 vs Claude Opus 4.8
- Kimi K3 vs Ling 3.1 Flash
- Kimi K3 vs Claude Opus 4.7
- Kimi K3 vs Qwen3.8 2.4T A95B
- Kimi K3 vs GPT-5.4
- Kimi K3 vs Claude Sonnet 5
- Kimi K3 vs GPT-5.5
Our take
Claude Haiku 5.5 is 19.6x cheaper for a typical chat. Kimi K3 scores higher on the Artificial Analysis Intelligence Index (43.6 vs 43.4). Kimi K3 has the larger context window (1.05M vs 1M tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is Claude Haiku 5.5 or Kimi K3 cheaper?
Claude Haiku 5.5 is cheaper for a typical chat (2K input tokens and 500 output tokens). Claude Haiku 5.5 costs $0.10 per 1M input tokens and $0.50 per 1M output tokens, while Kimi K3 costs $0.90 per 1M input tokens and $14 per 1M output tokens.
Which has a bigger context window, Claude Haiku 5.5 or Kimi K3?
Kimi K3 supports up to 1.05M tokens of context, compared with 1M for Claude Haiku 5.5.
Is Claude Haiku 5.5 smarter than Kimi K3?
On the Artificial Analysis Intelligence Index, Claude Haiku 5.5 scores 43.4 and Kimi K3 scores 43.6, putting Kimi K3 ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use Claude Haiku 5.5 and Kimi K3 at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Claude Haiku 5.5 and Kimi K3 answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Claude Haiku 5.5 and Kimi K3 at the same time. Compare the answers side by side and keep the best one.