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Claude Haiku 5.5 vs Solar Mini 4

Claude Haiku 5.5 leads the LLM Stats Score 50.0 to 31.9. Solar Mini 4 is 1.1x cheaper per token.

Anthropic · Upstage · Updated for 2026

Which is better?

Claude Haiku 5.5 leads the overall LLM Stats Score 50.0 to 31.9, ranking #19 overall.

In the 4 individual benchmarks reported for both models, Claude Haiku 5.5 wins 4; this is a narrower head-to-head signal than the composite indexes.

On price, Solar Mini 4 is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude Haiku 5.5 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Haiku 5.5

  • overall performance matters — it scores 50.0 and ranks #19 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 4 of 4 exact shared results
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Oct 2026

Choose Solar Mini 4

  • cost matters — it's about 1.1x cheaper per token

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
Solar Mini 4
Upstage
Core performance indexes
LLM Stats Score
50.0
#19
31.9
#122
Reasoning
47.2
#27
31.7
#120
Coding
40.2
#13
17.1
#135
Agents
33.3
#28
2.6
#179
Cost, coverage & limits
Benchmark wins
4 of 4
0 of 4
Input price
$0.10 / M
$0.10 / M
Output price
$0.50 / M
$0.40 / M
Context window
1,000,000
524,288

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Haiku 5.5
Solar Mini 4
Math
25.7#110
25.5#113
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 6 for Solar Mini 4

4 shared

Claude Haiku 5.5 outperforms in 4 benchmarks (AA-Briefcase v1.1, GDPval-AA 2.1, Humanity's Last Exam (no tools, text-only), Terminal-Bench 4.0), while Solar Mini 4 is better at 0 benchmarks.

Claude Haiku 5.5 significantly outperforms across most benchmarks.

Thu Oct 08 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Solar Mini 4 costs less

For input processing, Claude Haiku 5.5 ($0.10/1M tokens) costs the same as Solar Mini 4 ($0.10/1M tokens).

For output processing, Claude Haiku 5.5 ($0.50/1M tokens) is 1.3x more expensive than Solar Mini 4 ($0.40/1M tokens).

In conclusion, Claude Haiku 5.5 is more expensive than Solar Mini 4.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Thu Oct 08 2026 • llm-stats.com
Anthropic
Claude Haiku 5.5
Input tokens$0.10
Output tokens$0.50
Best providerAnthropic
Upstage
Solar Mini 4
Input tokens$0.10
Output tokens$0.40
Best providerUnknown Organization
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Claude Haiku 5.5 accepts 1,000,000 input tokens compared to Solar Mini 4's 524,288 tokens. Solar Mini 4 can generate longer responses up to 131,072 tokens, while Claude Haiku 5.5 is limited to 128,000 tokens.

Anthropic
Claude Haiku 5.5
Input1,000,000 tokens
Output128,000 tokens
Upstage
Solar Mini 4
Input524,288 tokens
Output131,072 tokens
Thu Oct 08 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Haiku 5.5 supports multimodal inputs, whereas Solar Mini 4 does not.

Claude Haiku 5.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Haiku 5.5

Text
Images
Audio
Video

Solar Mini 4

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Haiku 5.5

Proprietary

Closed source

Solar Mini 4

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while Solar Mini 4 was released on 2026-09-22.

Claude Haiku 5.5 is 1 month newer than Solar Mini 4.

Claude Haiku 5.5

Oct 7, 2026

1 days ago

2w newer
Solar Mini 4

Sep 22, 2026

2 weeks ago

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a knowledge cutoff of 2026-06-01, while Solar Mini 4 has a cutoff of 2026-02-01.

Claude Haiku 5.5 has more recent training data (up to 2026-06-01), making it potentially better informed about events through that date compared to Solar Mini 4 (2026-02-01).

Claude Haiku 5.5

Jun 2026

4 mo newer
Solar Mini 4

Feb 2026

Provider Availability

Claude Haiku 5.5 is available from Anthropic. Solar Mini 4 is available from Upstage.

Claude Haiku 5.5

anthropic logo
Anthropic
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

Solar Mini 4

upstage logo
Unknown Organization
Input Price:Input: $0.10/1MOutput Price:Output: $0.40/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Haiku 5.5 and Solar Mini 4 side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
Solar Mini 4
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs Solar Mini 4.

Which is better, Claude Haiku 5.5 or Solar Mini 4?

Claude Haiku 5.5 leads the LLM Stats Score 50.0 to 31.9. Claude Haiku 5.5 is made by Anthropic and Solar Mini 4 is made by Upstage. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Haiku 5.5 compare to Solar Mini 4 in benchmarks?

Claude Haiku 5.5 scores Global-MMLU: 87.8%, MILU: 87.6%, BenchCAD (with Python tool): 87.0%, Chartography: 86.2%, SWE-bench Multilingual: 83.7%. Solar Mini 4 scores AA-LCR: 83.3%, SciCode: 47.6%, GDPval-AA 2.1: 35.7%, AA-Briefcase v1.1: 29.1%, Humanity's Last Exam (no tools, text-only): 25.8%.

Is Claude Haiku 5.5 cheaper than Solar Mini 4?

Both models cost $0.10 per million input tokens.

What are the context window sizes for Claude Haiku 5.5 and Solar Mini 4?

Claude Haiku 5.5 supports 1.0M tokens and Solar Mini 4 supports 524K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Haiku 5.5 and Solar Mini 4?

Key differences include LLM Stats Score (50.0 vs 31.9), context window (1.0M vs 524K), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and Solar Mini 4?

Claude Haiku 5.5 is developed by Anthropic and Solar Mini 4 is developed by Upstage.

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