claude-opus-4-8

Name: claude-opus-4-8 (extra-high reasoning) - Banja Labs benchmark
Creator: Banja

claude-opus-4-8 (Anthropic) scored 84.2% composite across 87 tasks. This run covers Australian accounting, Animation, Auth screens, Dashboards, Australian law, Marketing pages, Programming, SVG and graphics, svg-scene, UI components, Websites. Published 2026-07-21.

Agent harnessExtra-high reasoning

Composite

84.2%

95% CI 77.2% - 91.0%

Est. cost

$3.73

USD

Tokens

196,310

generation

Wall clock

8 min

end to end

Gate pass

validated

Separation

good vs bad

By domain

Composite score per domain, weakest first. Judge is the vision model’s read, shown for the visual domains.

Marketing page

1 task

33.3%

judge

33.3%

composite

Websites

15 tasks

58.3%

composite

Auth screen

1 task

70.8%

judge

70.8%

composite

svg-scene

1 task

72.9%

judge

72.9%

composite

Animation

2 tasks

76.0%

judge

76.0%

composite

SVG and graphics

13 tasks

84.7%

composite

Dashboard

1 task

85.4%

judge

85.4%

composite

Australian accounting

23 tasks

89.2%

composite

UI components

19 tasks

94.1%

composite

Australian law

5 tasks

100.0%

composite

Programming

6 tasks

100.0%

composite

Outputs

The actual rendered output. Open any tile to view it in a popup, or compare the same task across every model.

Search outputs53 results

Task	Domain	Difficulty	Objective	Pass at first attempt	Output
AUSFA-0002	Australian accounting	medium	85.0%	100.0%	Compare Open ↗
AUSFA-0011	Australian accounting	hard	66.7%	0.0%	Compare Open ↗
AUSFA-0012	Australian accounting	hard	0.0%	0.0%	Compare Open ↗
AUSFA-0014	Australian accounting	hard	0.0%	0.0%	Compare Open ↗

Task	Domain	Difficulty	Objective	Pass at first attempt	Output
ACC-0001	Australian accounting	easy	100.0%	100.0%	Compare Open ↗
ACC-0002	Australian accounting	medium	100.0%	100.0%	Compare Open ↗
ACC-0003	Australian accounting	easy	100.0%	100.0%	Compare Open ↗
ACC-0004	Australian accounting	medium	100.0%	100.0%	Compare Open ↗
ACC-0005	Australian accounting	hard	100.0%	100.0%	Compare Open ↗
ACC-0006	Australian accounting	medium	100.0%	100.0%	Compare Open ↗
AUSFA-0001	Australian accounting	easy	100.0%	100.0%	Compare Open ↗
AUSFA-0003	Australian accounting	easy	100.0%	100.0%	Compare Open ↗
AUSFA-0004	Australian accounting	medium	100.0%	100.0%	Compare Open ↗
AUSFA-0005	Australian accounting	medium	100.0%	100.0%	Compare Open ↗
AUSFA-0006	Australian accounting	medium	100.0%	100.0%	Compare Open ↗
AUSFA-0007	Australian accounting	medium	100.0%	100.0%	Compare Open ↗
AUSFA-0008	Australian accounting	hard	100.0%	100.0%	Compare Open ↗
AUSFA-0009	Australian accounting	hard	100.0%	100.0%	Compare Open ↗
AUSFA-0010	Australian accounting	medium	100.0%	100.0%	Compare Open ↗
AUSFA-0013	Australian accounting	hard	100.0%	100.0%	Compare Open ↗
BASQU-0001	Australian accounting	hard	100.0%	100.0%	Compare Open ↗
BASQU-0002	Australian accounting	hard	100.0%	100.0%	Compare Open ↗
BASQU-0003	Australian accounting	hard	100.0%	100.0%	Compare Open ↗
CODE-0001	Programming	easy	100.0%	100.0%	Compare Open ↗
CODE-0002	Programming	medium	100.0%	100.0%	Compare Open ↗
CODE-0003	Programming	medium	100.0%	100.0%	Compare Open ↗
CODE-0004	Programming	easy	100.0%	100.0%	Compare Open ↗
CODE-0005	Programming	medium	100.0%	100.0%	Compare Open ↗
CODE-0006	Programming	hard	100.0%	100.0%	Compare Open ↗
LAW-0001	Australian law	medium	100.0%	100.0%	Compare Open ↗
LAW-0002	Australian law	medium	100.0%	100.0%	Compare Open ↗
LAW-0003	Australian law	hard	100.0%	100.0%	Compare Open ↗
LAW-0004	Australian law	hard	100.0%	100.0%	Compare Open ↗
LAW-0005	Australian law	medium	100.0%	100.0%	Compare Open ↗

claude-opus-4-8

By domain

Outputs

Simple UI animation

Complex animation scene

Register / login screen

Keyboard-operable modal dialog with focus trap and return

Keyboard-operable select-only combobox with a listbox popup

Keyboard-operable menu button with arrow-key navigation

Keyboard-operable tabs with roving tabindex and arrow-key activation

Keyboard-operable accordion with disclosure buttons and arrow navigation

Keyboard-operable ARIA radiogroup with roving tabindex

SaaS analytics dashboard

Bar chart with exact proportional heights for [4, 10, 6, 8, 12]

Four-node pipeline flow graph with exactly four edges

Horizontal stacked bar with proportional segments and a legend

Org chart with three reporting edges and a fixed hierarchy

Gantt chart with proportional start offsets and durations

Grouped two-series bar chart across three categories with a legend

Five-node hub-and-satellite network with exactly six edges

Marketing landing page

Stat card built to a frozen token sheet

Three overlapping layers in an exact z-order and position

Flex toolbar with an exact gap and exact button geometry

Two-column grid split with exact column widths and gutter

Pill CTA button built to an exact box and token sheet

Progress bar with an exact fill width and track tokens

Segmented pill nav with an exact active pill and gap

Notification badge pinned to an avatar at an exact offset and z-order

Header nav that collapses to a menu button below a breakpoint

Feature grid that reflows from one to two to three columns

Sidebar and content layout that never overflows, including at the tablet width

Responsive nav that both collapses at the breakpoint and toggles open on mobile

Gallery grid that widens from one to four columns as the viewport grows

Headline type scale that steps up at the tablet and desktop breakpoints

CTA buttons that stack full-width on mobile and sit in a row on desktop

Sydney Harbour at golden hour (SVG scene)

Reproduce a three-tier SaaS pricing page from its screenshot

Reproduce a dark analytics dashboard overview from its screenshot

Reproduce an editorial blog article page from its screenshot

Reproduce a split product-feature section from its screenshot

Reproduce the Banja home page hero from its screenshot

Single-concept flat icon (coffee cup with steam)

Simple house icon (square, triangle roof, door)

Flat multi-object scene (sun, hills, hot-air balloon)

Geometric logo mark (overlapping circles, abstract monogram)

Tiny bar chart for values [3, 7, 5, 9]

Traffic light with only the green light lit

Accessible pricing card with a monthly/annual toggle

Accessible accordion FAQ that expands on click

Tabbed interface that switches panels on click

Signup form with inline email validation

Stat and testimonial card grid

Landing page with a working mobile nav toggle

Dashboard with a sortable data table

Pricing page with a working billing toggle and FAQ accordion

Objective tasks