- Home
- LLM comparison
- Claude Opus 5.5 vs. Claude Haiku 5.5
AnthropicLLM matchup
Claude Opus 5.5vs.Claude Haiku 5.5
Is the higher price worth it?
Claude Opus 5.5 performs better than Claude Haiku 5.5, but costs 40 times as much.
Claude Opus 5.5
Rank 1
Claude Haiku 5.5
Rank 20
Claude Opus 5.5
Claude Haiku 5.5
Claude Opus 5.5
Claude Haiku 5.5
Claude Opus 5.5
Rank 13 of 875
Claude Haiku 5.5
Rank 3 of 875
Above 100,000 tokens of context, Claude Haiku 5.5 costs more: $0.50 input and $2.50 output per 1M tokens.
Choose Claude Opus 5.5 for
Choose Claude Haiku 5.5 for
No clear advantage
On this page
Where is the difference?
Strengths at a glance
Opus 5.5Haiku 5.5
The median of all ranked models is below 100 in every area, so it sits in the centre of the net.
95 % range: Opus 5.5 121.2 to 138.8, Haiku 5.5 102.5 to 109.9.
The same values and verdicts as the bars below. In the top field the net starts at 100 points, the reference group average; values below sit as a hollow point in the centre. Not in the net because a model has no own value there or the data are too thin: Multimodal.
Opus 5.5 is ahead in 9 of 10 areas, Haiku 5.5 in none.
Opus 5.5 ahead: 9too little data: 1
Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.
Show 4 more areas that do not count toward the overall index
Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.
Claude Opus 5.5 vs. Claude Haiku 5.5 at the same effort
Both models measured at the same reasoning efforts. This shows whether a lead comes from the model or only from more compute.
| Effort | Opus 5.5 | Haiku 5.5 | Gap | Verdict | Test series |
|---|---|---|---|---|---|
| low | 106.5 | 80.8 | 23.8 | Opus 5.5 ahead | 11 |
| medium | 117.5 | 90.4 | 25.8 | Opus 5.5 ahead | 11 |
| high | 120.4 | 96.6 | 22.8 | Opus 5.5 ahead | 11 |
| xhigh | 124.2 | 101.3 | 21.9 | Opus 5.5 ahead | 11 |
| max | 126.1 | 103.4 | 19.9 | Opus 5.5 ahead | 12 |
| Overall index (max vs. max) | 126.1 | 103.4 | 22.8 | Opus 5.5 ahead |
Gap and verdict compare only the Artificial Analysis test series in which both models are measured at that effort. Tied below 3 points, ahead only beyond two standard errors. The single values rest on all test series of each model, so their difference can deviate from the gap.
Which model for which task?
Everyday tasks, translated from the area values above. Each row names the values it rests on.
See for yourself: same task, one attempt
The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.
Claude Opus 5.5

Oct 1, 2026 · 33 s · $0.07
Test details
- Run date
- Oct 1, 2026
- API provider
- openrouter
- Requested API model
- anthropic/claude-opus-5.5
- Reasoning setting
- high
- Token limit including reasoning
- 8,192 tokens
- Output tokens
- 3,536 tokens
- Cost of the attempt
- $0.0708
- Response time
- 33.2 s
- API model reported in response
- anthropic/claude-opus-5.5
- Pinned endpoint
- Anthropic | anthropic/claude-opus-5.5-20260921
- Temperature
- Provider default
- Test protocol
- community-visual-tests-v1
- Technical checks
- Passed, not a quality rating
Visually reviewed. This individual test does not establish overall model quality.
Claude Haiku 5.5
Not tested yet
SVG short test
SVG short test
One SVG task with the same fixed settings for every model, without hidden thinking.
Prompt
Return only one standalone SVG of a pelican riding a bicycle. Use viewBox="0 0 800 600", simple shapes, two clearly visible wheels and a recognizable pelican with a long beak. At most 30 SVG elements and 1800 characters. No Markdown, explanations, comments, scripts, animation, CSS or external resources.
Claude Opus 5.5
Unavailable in this round
Claude Haiku 5.5
Unavailable in this round
Claude Opus 5.5 and Claude Haiku 5.5 in the overall index
Every model with a place in the overall index, both models of this matchup highlighted. You can add or hide other models.
Overall index (Gradually Meta-Score v4)
20 of 91 models
4 models in this view are measured at a lower reasoning effort than max in the overall index. Dashed column: lower reasoning effort than the top.
Popularity compared
How often the models are searched for, used and mentioned, on a scale from 0 to 100.
Claude Haiku 5.5 is more popular than Claude Opus 5.5: 77 to 70 out of 100.
Over time
Weekly values from October 18, 2026 to November 5, 2026
Claude Opus 5.5Claude Haiku 5.5
All data side by side
The better value is bold. For the overall index only when the gap is clear.
| Metric | Claude Opus 5.5 | Claude Haiku 5.5 |
|---|---|---|
| Intelligence | ||
| Overall indexpoints, 100 = reference group average, higher is better | 126.1 | 103.4 |
| Rank | Rank 1 of 91 | Rank 20 of 91 |
| Price per 1M tokens | ||
| Inputwhat you send | $4 | $0.10above 100,000 tokens: $0.50 |
| Outputwhat the model writes | $20 | $0.50above 100,000 tokens: $2.50 |
| Speed | ||
| Tokens per second | 106 | 236 |
| Popularity | ||
| Popularitysearch, usage and mentions, 0 to 100 | 70Rank 13 of 875 | 77Rank 3 of 875 |
| Technical | ||
| Context windowhow much text the model reads at once | 1 M tokens≈ 1,500 A4 pages | 1 M tokens≈ 1,500 A4 pages |
| Knowledge cutoff | June 2026 | June 2026 |
| Released | Sep 22, 2026 | Oct 7, 2026 |
| Availability | Active | Active |
| Open weights | no | no |
Prices without caching or batch discounts · Page count as a rule of thumb from Artificial Analysis
Shared benchmarks
Single results from the same benchmark version, task and metric. A value is bold only with the same test setup and a clear gap.
A: Claude Opus 5.5B: Claude Haiku 5.5
Show 54 more benchmarks
More comparisons
Compare Claude Opus 5.5 and Claude Haiku 5.5 with the models people compare them with most often.
Compare another matchup
Predecessor and successor
The most popular comparisons
- 1Claude Opus 5.5 vs. GPT-6 Astra
- 2Claude Opus 5.5 vs. Gemini 4 Argon
- 3Claude Haiku 5.5 vs. GPT-6 Luna
- 4Claude Opus 5.5 vs. Claude Sonnet 5.5
- 5Claude Opus 5.5 vs. DeepSeek-V4.1-Flash
- 6Claude Opus 5.5 vs. Gemini 3.8 Flash
- 7Claude Opus 5.5 vs. Claude Sonnet 5
- 8Claude Opus 5.5 vs. DeepSeek-V4-Pro
- 9Claude Sonnet 5.5 vs. Claude Haiku 5.5
Show all 80 comparisons
- 10Claude Haiku 5.5 vs. DeepSeek V4.1 Flash 1017
- 11Claude Opus 5.5 vs. Claude Fable 5.1
- 12Claude Haiku 5.5 vs. DeepSeek-V4-Flash
- 13Claude Opus 5.5 vs. Kimi K3
- 14Claude Opus 5.5 vs. GPT-6.1 Sol
- 15Claude Opus 5.5 vs. GLM-5.3-Flash
- 16Claude Haiku 5.5 vs. DeepSeek-V4.1-Flash
- 17Claude Opus 5.5 vs. Qwen 3.8 Max 0902
- 18Claude Opus 5.5 vs. GLM-5.3
- 19Claude Opus 5.5 vs. GPT-5.6 Terra
- 20Claude Opus 5.5 vs. Muse Wonder Full
- 21Claude Opus 5.5 vs. Gemini 3.1 Pro Preview
- 22Claude Haiku 5.5 vs. GLM-5.3
- 23Claude Opus 5.5 vs. Claude Sonnet 4.6
- 24Claude Haiku 5.5 vs. Gemini 3.5 Flash-Lite
- 25Claude Haiku 5.5 vs. Gemini 3.8 Flash
- 26Claude Opus 5.5 vs. Grok 4.6
- 27Claude Opus 5.5 vs. Claude Sonnet 4.5
- 28Claude Haiku 5.5 vs. Claude Sonnet 4.5
- 29Claude Opus 5.5 vs. GLM-5.2
- 30Claude Opus 5.5 vs. Mistral Large 4
- 31Claude Opus 5.5 vs. Claude Opus 4.8
- 32Claude Opus 5.5 vs. GPT-5.5
- 33Claude Opus 5.5 vs. Muse Spark 1.3
- 34Claude Haiku 5.5 vs. Claude Sonnet 5
- 35Claude Opus 5.5 vs. Claude Opus 4.6
- 36Claude Haiku 5.5 vs. Claude Opus 5
- 37Claude Haiku 5.5 vs. GPT-6 Astra
- 38Claude Haiku 5.5 vs. Gemini 3.5 Flash
- 39Claude Haiku 5.5 vs. Claude Opus 4.8
- 40Claude Opus 5.5 vs. Kimi K3.1 Pro
- 41Claude Haiku 5.5 vs. Gemini 4 Argon
- 42Claude Opus 5.5 vs. Mistral Large 3
- 43Claude Haiku 5.5 vs. Grok 4.7
- 44Claude Opus 5.5 vs. GPT-5.6 Luna
- 45Claude Haiku 5.5 vs. GPT-5.6 Luna
- 46Claude Haiku 5.5 vs. Qwen 3.8 Max 0902
- 47Claude Opus 5.5 vs. Grok 4.7
- 48Claude Haiku 5.5 vs. Muse Spark 1.3
- 49Claude Haiku 5.5 vs. Claude Sonnet 4.6
- 50Claude Haiku 5.5 vs. Gemini 3.7 Flash
- 51Claude Opus 5.5 vs. Qwen 3.8 27B
- 52Claude Haiku 5.5 vs. Mistral Large 4
- 53Claude Opus 5.5 vs. GPT-6 Luna
- 54Claude Opus 5.5 vs. DeepSeek-V4-Flash
- 55Claude Haiku 5.5 vs. GPT-6.1 Sol
- 56Claude Opus 5.5 vs. DeepSeek V4.1 Flash 1017
- 57Claude Opus 5.5 vs. GPT-5.6 Sol
- 58Claude Opus 5.5 vs. Mistral Medium 3.5
- 59Claude Opus 5.5 vs. GPT-6 Sol
- 60Claude Opus 5.5 vs. Claude Fable 5
- 61Claude Haiku 5.5 vs. Gemini 3.1 Pro Preview
- 62Claude Haiku 5.5 vs. GLM-5.3-Flash
- 63Claude Haiku 5.5 vs. DeepSeek-V4-Pro
- 64Claude Haiku 5.5 vs. GPT-5.6 Sol
- 65Claude Opus 5.5 vs. Gemini 3.6 Flash
- 66Claude Haiku 5.5 vs. Gemini 3.6 Flash
- 67Claude Haiku 5.5 vs. Claude Opus 4.6
- 68Claude Haiku 5.5 vs. Kimi K2.6
- 69Claude Opus 5.5 vs. Gemini 3.5 Flash
- 70Claude Opus 5.5 vs. Kimi K2.6
- 71Claude Opus 5.5 vs. GPT-5.4
- 72Claude Opus 5.5 vs. MiMo-V2.5
- 73Claude Opus 5.5 vs. Gemini 4 Carbon
- 74Claude Opus 5.5 vs. Claude Opus 4.5
- 75Claude Haiku 5.5 vs. Claude Opus 4.7
- 76Claude Opus 5.5 vs. GPT-6.1 Terra
- 77Claude Haiku 5.5 vs. Mistral Large 3
- 78Claude Haiku 5.5 vs. GPT-5.5
- 79Claude Opus 5.5 vs. Claude Haiku 4.5
- 80Claude Haiku 5.5 vs. GPT-6.1 Terra