AI model comparison
Claude Haiku 5.5 vs Solar Pro 4
Side by side comparison of Claude Haiku 5.5 and Solar Pro 4 on pricing, benchmark scores, context window, and more.
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
Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window.
- Input / 1M
- $0.15
- Output / 1M
- $0.60
- Context
- 524K
Comparing image generators? Compare image models
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
Claude Haiku 5.5
1.3x cheaper for a typical chat
Higher intelligence score
Claude Haiku 5.5
36.2 vs 28.2 on Artificial Analysis
Larger context window
Claude Haiku 5.5
1M vs 524K 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 5.536.2Coding index
Claude Haiku 5.5Not availableAgentic index
Claude Haiku 5.5Not availablePricing
Claude Haiku 5.5 vs Solar Pro 4 API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | Claude Haiku 5.5 | |
|---|---|---|
| Input tokensPer 1M tokens | $0.10 | $0.15 |
| Output tokensPer 1M tokens | $0.50 | $0.60 |
| Cached input (read)Per 1M tokens | $0.01 | $0.03 |
| 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 | 524K tokens |
| Max output | 128K tokens | 131K tokens |
| Input types | File, Image, Text | Text |
| Output types | Text | Text |
| Reasoning effort levels | Max, Extra high, High, Medium, Low, None | Max, Extra high, High, Medium, Low, Minimal, None |
| Default reasoning effort | Medium | Medium |
| Release date | October 7, 2026 | August 10, 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 | Not supported |
| Deterministic seed | Not supported | Not 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 Claude Opus 5.5
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- Solar Pro 4 vs MiniMax M3.1 Flash
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- Solar Pro 4 vs Mistral Large 4
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- Solar Pro 4 vs DeepSeek V4.1 Flash
- Solar Pro 4 vs Solar Mini 4
Our take
Claude Haiku 5.5 is 1.3x cheaper for a typical chat. Claude Haiku 5.5 scores higher on the Artificial Analysis Intelligence Index (36.2 vs 28.2). Claude Haiku 5.5 has the larger context window (1M vs 524K 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 Solar Pro 4 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 Solar Pro 4 costs $0.15 per 1M input tokens and $0.60 per 1M output tokens.
Which has a bigger context window, Claude Haiku 5.5 or Solar Pro 4?
Claude Haiku 5.5 supports up to 1M tokens of context, compared with 524K for Solar Pro 4.
Is Claude Haiku 5.5 smarter than Solar Pro 4?
On the Artificial Analysis Intelligence Index, Claude Haiku 5.5 scores 36.2 and Solar Pro 4 scores 28.2, putting Claude Haiku 5.5 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 Solar Pro 4 at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Claude Haiku 5.5 and Solar Pro 4 answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Claude Haiku 5.5 and Solar Pro 4 at the same time. Compare the answers side by side and keep the best one.