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Claude Haiku 5.5

Anthropic

Strongest in Document design (#6 of 47), weakest in Core abilities (#168 of 225). Above par in 19 of 25 scopes. Among the models it meets almost everywhere, it finishes behind Claude Sonnet 5.5 and Claude Fable 5.1 and ahead of Kimi K3 and Gemini 3.6 Flash.

§ 1 · Profile

What it is good at

Bars run from 50 — the average of the models each source lists — so right of the line is above par. The middle column is the gap to whoever leads that scope.

Agents61.1#11/289
Long-horizon work60.3#9/47
Knowledge work66.6#12/198
Web research57.8#13/48
Computer use58#20/80
Coding56.9#24/176
Agentic coding57.2#22/169
Professional54.1#38/187
Document design62.1#6/47
Cybersecurity59.6#6/46
Medical60.6#7/149
Biology research50.9#12/27
IT operations43.5#16/31
Finance54.2#61/161
Legal48.4#94/162
Reasoning54.9#46/189
Mathematics58.4#17/149
Reasoning51.2#61/143
Knowledge50.8#100/190
Document parsing50.9#44/76
Core abilities44.6#168/225
General intelligence59.3#32/214
Instruction following47.4#37/62
Data analysis26#46/47
Language30.8#58/62

§ 2 · Head to head

What it beats, and what beats it

The same models turn up scope after scope. Counted once: where both were placed, who finished higher. Bars run right for Claude Haiku 5.5, left for the other.

Claude Haiku 4.5won 19 · lost 1
GPT-5.4 Nanowon 16 · lost 1
GPT-5.4 Miniwon 13 · lost 2
Mistral Large 4won 18 · lost 3
Step 5won 16 · lost 3
Gemma 4 31Bwon 15 · lost 3
Inkling Smallwon 12 · lost 3
Mimo V2.6 Flashwon 12 · lost 3
Kimi K2.5won 12 · lost 3
DeepSeek V4 Flash Visionwon 13 · lost 4
GPT-6 Lunawon 19 · lost 6
Claude Sonnet 4.5won 11 · lost 4
GPT-5 Miniwon 11 · lost 4
Claude Sonnet 4won 11 · lost 4
MiniMax M3won 16 · lost 6
Inklingwon 16 · lost 6
Gemini 3.5 Flash Litewon 13 · lost 5
DeepSeek V4 Flashwon 13 · lost 5
Qwen3.8 27Bwon 16 · lost 7
GLM-5.2won 11 · lost 5
GPT-5.6 Lunawon 17 · lost 8
Kimi K2.6won 10 · lost 5
GLM-5.3 Flashwon 16 · lost 8
Grok 4.5won 15 · lost 8
Mimo V2.6 Prowon 13 · lost 7
Muse Spark 1.2won 14 · lost 9
Qwen3.7 Maxwon 9 · lost 6
Qwen3.8 Maxwon 13 · lost 9
Claude Sonnet 5won 14 · lost 10
Gemini 3.7 Flashwon 14 · lost 10
Claude Sonnet 4.6won 12 · lost 9
Gemini 3.1 Prowon 13 · lost 10
Grok 4.7won 13 · lost 10
Gemini 3.8 Flashwon 14 · lost 11
Gemini 3.6 Flashwon 10 · lost 8
Kimi K3won 12 · lost 11
DeepSeek V4 Prowon 9 · lost 9
GLM-5.3won 11 · lost 12
Gemini 3.5 Flashwon 8 · lost 9
Muse Spark 1.1won 7 · lost 8
Claude Opus 4.6won 7 · lost 8
GPT-5.6 Terrawon 11 · lost 13
GPT-5.5won 10 · lost 13
Claude Opus 4.8won 9 · lost 13
GPT-5.2won 6 · lost 9
Claude Opus 4.5won 6 · lost 9
DeepSeek V4.1 Flashwon 10 · lost 15
Grok 4.6won 9 · lost 14
Muse Spark 1.3won 8 · lost 13
GPT-6 Solwon 9 · lost 16
Claude Opus 4.7won 6 · lost 11
GPT-5.4won 6 · lost 11
GPT-5.6 Solwon 7 · lost 18
GPT-6.1 Solwon 5 · lost 20
GPT-6 Astrawon 5 · lost 20
Muse Wonderwon 4 · lost 17
Claude Opus 5won 4 · lost 20
Muse Wonder Fullwon 2 · lost 13
Claude Opus 5.5won 3 · lost 22
Gemini 4 Argonwon 2 · lost 19
Claude Fable 5won 2 · lost 20
Claude Fable 5.1won 1 · lost 23
Claude Sonnet 5.5won 1 · lost 24

§ 3 · Sources

Where the numbers come from

8 publications, 37 figures. Every one links to the page it was read from.

Artificial Analysis ↗1 measureread 2026-10-19
Artificial Analysis Intelligence Index 43
GDPval-AA ↗1 measureread 2026-10-19
GDPval-AA 1618
AA-Briefcase ↗1 measureread 2026-10-19
AA-Briefcase 1577
ARC-AGI-2 ↗1 measureread 2026-10-19
ARC-AGI-2 61.3%
LiveBench ↗8 measuresread 2026-10-19
LiveBench 75.6LiveBench · Agentic 57.6LiveBench · Reasoning 82.4LiveBench · Coding 91.4LiveBench · Browser Use 80LiveBench · Data Analysis 53.1LiveBench · Research 81.9LiveBench · Design 83.1
LiveBench 1.0 ↗8 measuresread 2026-10-19
LiveBench 1.0 72.1LiveBench 1.0 · Reasoning 81.2LiveBench 1.0 · Coding 76.4LiveBench 1.0 · Agentic Coding 51.4LiveBench 1.0 · Mathematics 92.8LiveBench 1.0 · Data Analysis 72.8LiveBench 1.0 · Language 63.5LiveBench 1.0 · Instruction Following 66.5
Vals.ai ↗11 measuresread 2026-10-19
Vals · Legal Research Bench 43.27%Vals · Harvey Legal Agent Benchmark 1.25%Vals · Finance Agent 54.14%Vals · MedCode 51.54%Vals · MedScribe 89.54%Vals · BioMysteryBench 70.37%Vals · CyberBench 75.48%Vals · SRE Bench 5.72%Vals · Vibe Code Bench 90.44% (OpenHands)Vals · Code Migration 44.57%Vals · ProofBench 89%
ParseBench ↗6 measuresread 2026-10-19
ParseBench · Overall 57.4%ParseBench · Tables 86.85%ParseBench · Charts 10.13%ParseBench · Content faithfulness 90.24%ParseBench · Semantic formatting 65.64%ParseBench · Visual grounding 34.14%

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