Claude Haiku 5.5 Is a GAME CHANGER! 90% CHEAPER & INSANE Performance! (Fully Tested)

Summary
This video is a review and demonstration by tech YouTuber World of AI examining the release of Anthropic’s Claude Haiku 5.5. The presenter evaluates the model’s new architecture, updated pricing tiers, benchmark rankings, and real-world coding outputs across multiple interactive web applications, games, and motion graphics.

What is shown

• macOS and Minecraft Clone Comparison [00:20 - 00:55]: Previous Haiku 4.5 web desktop outputs contrasted with Haiku 5.5 generating a full browser-based macOS desktop simulation running an interactive, voxel-rendered Minecraft clone with terrain and physics.
• Announcement and Agentic Demo [01:00 - 01:39]: Review of Anthropic’s official announcement post and the egg drop engineering simulation comparing Claude Opus 5.5 alone against Opus 5.5 orchestrating 10 Haiku 5.5 subagents.
• Benchmark Breakdown [01:51 - 03:00]: Official evaluation tables and charts comparing Haiku 5.5, Haiku 4.5, GPT-6 Luna, and Sonnet 5.5 across OSWorld 2.1, Humanity’s Last Exam, Terminal Bench 4.0, and GDPval.
• Sponsored Tool Demo [03:03 - 03:53]: Overview of Gamut’s cloud agent platform running triage and response agents on GitHub repositories.
• Model Specifications and Pricing [04:01 - 05:58]: Claude console interface highlighting a 1M token context window, 128k max output, adjustable effort setting, and prompt pricing tables (under vs. over 100k tokens), alongside Sonnet 5.5’s cache read price reduction.
• Token Usage Analysis [06:14 - 06:55]: Artificial Analysis charts showing output token usage per task at max reasoning effort.
• Vibe Coding Leaderboard [07:34 - 08:26]: World of AI Bench ranking Haiku 5.5 at 10th overall with an 83.6 composite score.
• 3D Call of Duty Zombies Web Clone [08:27 - 10:59]: Gameplay testing of a Three.js first-person shooter generated with Haiku 5.5, featuring functional window barrier boarding, weapon swaps, mystery box opening animations, and stamina mechanics.
• Front-End and 3D Interactive Showcases [11:48 - 13:59]: Generation samples including typography web landing pages (Folio, Quire, Stipple), an isometric room study (Hearth & Haven) with daytime/nighttime lighting controls, vector SVG artwork, and an interactive Three.js SDF Raymarcher simulation.
• Comparative Tests [14:01 - 15:28]: Side-by-side Japanese landscape generation against Grok 4.7 and a running zebra animation comparison against GPT-6 Luna.
• Action RPG & Motion Graphics Generation [15:48 - 17:20]: Community project by user Leon recreating an isometric Minecraft Dungeons action game in one hour, followed by a kinetic 60 FPS motion design showreel generated from code in 15 minutes.

Claims & numbers

• The presenter notes Anthropic claims Haiku 5.5 is its cheapest, fastest, and most capable small model released to date, costing on average around 75% less to run than Haiku 4.5.
• On OSWorld 2.1, the presenter displays scores showing Haiku 5.5 jumped to 72.4% (from 15.7% on Haiku 4.5).
• On Humanity’s Last Exam (no tools), Haiku 5.5 improved from 10.2% to 45.9% (and 57.4% with tools).
• On Chartography, benchmark scores increased from 6.4% to 46.4%.
• In standard pricing for prompts up to 100k tokens, Haiku 5.5 costs $0.10 per million input tokens and $0.50 per million output tokens (a 90% drop from Haiku 4.5’s $1.00 / $5.00 rates), with prompt cache reads at $0.01/M and writes at $0.125/M.
• For prompts exceeding 100k tokens, pricing adjusts to $0.50 per million input tokens and $2.50 per million output tokens.
• The presenter reports Anthropic cut Claude Sonnet 5.5’s cache read pricing by 50% down to $0.10 per million tokens, making long-running Sonnet tasks approximately 20% cheaper overall.
• Artificial Analysis data cited shows Haiku 5.5 at maximum reasoning uses ~162k output tokens per Intelligence Index task—nearly 3x more output tokens than GPT-6 Luna at maximum effort.
• On World of AI Bench, Haiku 5.5 achieved an 83.6 rating, ranking 10th overall and placing ahead of Grok 4.7.
• In a head-to-head coding prompt comparison cited from user @notjazii, Haiku 5.5 completed the task in 27 minutes at an estimated $0.80 API cost, whereas Grok 4.7 took 35 minutes and cost $4.10.
• User Leon’s Minecraft Dungeons recreation reportedly consumed approximately 1% of a standard 5-hour Claude usage window.

Notable quotes

• [01:05] “This is a pretty significant update because Haiku 5.5 is reportedly around 75% cheaper to run than Haiku 4.5 on average...”
• [04:47] “...Haiku 5.5 is the first Haiku model to support adjustable effort. This means developers can choose how much reasoning effort the model should use depending on the task.”
• [06:48] “So while the model is incredibly cheap per token, the actual cost of completing a task will depend on how many tokens it consumes.”

Assessment
This video is a third-party creator review and benchmark demonstration combining official Anthropic launch materials with community and personal coding tests. The demonstrated outputs (web games, 3D scenes, front-end landing pages) are shown running live in browsers, though generation processes are sped up through jump cuts to focus on finalized outputs.

Described by gemini-3.8-flash on 2026-10-10 from the video’s audio and frames.