OptimAIzr – analyze and optimize your Claude Code usage Blend Bunjaku released optimAIzr, an open-source local CLI that profiles Claude Code, Codex and custom API calls to find wasted tokens and quantify savings, first presented September 13, 2026 and open source since September 30, 2026. The tool's sample profile of 4,062 calls and 743.4M tokens ($476.70 spend) flagged 931 calls (22.9%) and estimated $44.59/month, or $542.48/year, in potential savings, and its Claude Code mod requires version 2.1.287 or later. optimAIzr reads token counts and commands but never prompts or file contents, makes no network calls, and requires no account, upload or telemetry. Spend fewer tokens on the same work. optimAIzr is a local CLI that finds wasted tokens in Claude Code, Codex and your own API calls, shows what each fix would save, and checks it on your own traffic before you switch. No account, no upload, no telemetry. It reads token counts, never your prompts. First presented on September 13, 2026, and open source since September 30, 2026. npm i -g optimaizr optimaizr profile Or try it once without installing: npx optimaizr profile . Claude Code now runs mods, plugins that work inside it. The optimAIzr mod puts the numbers where you work, lets Y in optimaizr live switch the session you are in, and shows what each switch saved. ⏺ optimaizr: this turn $0.18 · 4 requests · 5h 55% → 56% optimAIzr █████████░░░░░░░ 56% of 5h · resets 15:00 ❯ Install it from a Claude Code session 2.1.287 or later : /plugin marketplace add blendbunjaku/optimaizr /plugin install optimaizr@optimaizr - The cost while Claude works. The spinner shows what the turn has cost so far and how full your 5-hour window is. The band above the prompt shows the window, how long it lasts at this pace and when it resets, from Claude Code's own limit meter. Each answer gets one line with its cost, its requests and how far the window moved. - Switches in the session you are in. Press Y on a model swap in optimaizr live and the running session uses the cheaper model from its next request. No restart, no /model . Subagents switch at once; a long conversation waits until reloading it into the new model pays back. A reasoning-effort finding lowers effort the same way. With optimaizr live --auto , confident switches apply without asking. - What a switch saved. A switched turn's line leads with the saving: the same tokens priced on the original model, less what they cost. The band keeps a running total. - Back in one command. Harder task? /optimaizr off returns the session you are in to its own model and effort; /optimaizr on resumes. - A guard against retry loops. When the same command fails twice in a row with nothing changed, the next identical attempt is held once and Claude is asked to change something first. - /optimaizr prints the session's spend, what it saved, both plan windows and any switch. /optimaizr hud shows it all as gauges and a sparkline. It reads usage figures and the commands Claude runs, never your prompts or file contents, and makes no network calls. The source is in mods/optimaizr https://github.com/blendbunjaku/optimaizr/blob/main/mods/optimaizr . optimaizr profile reads the sessions already on your machine and puts spend, waste and the biggest fix on one screen. Spend $476.70 $452.56/month at the last 30 days' rate Calls 4,062 Tokens 743.4M 739.7M in / 3.7M out Flagged calls 931 22.9% of calls Potential savings $44.59/mo $542.48/year Model mismatch 17% of your requests use a model whose capabilities exceed the detected workload requirements. 671 calls affected. optimaizr why breaks spend down by provider, model, project and kind of work, each level as a share of the one above. $132.47 total across 1,807 requests anthropic $132.47 100% 1807 calls - sonnet-5 $99.47 75% 1640 calls - kopshti-back $93.34 94% 1541 calls - Mechanical $36.11 39% 746 calls - Reasoning $27.52 29% 335 calls - Generation $15.22 16% 141 calls optimaizr live runs beside your agent and raises a fix the moment a pattern shows up. Press Y and your app switches from its next request, and so does Claude Code with the optimAIzr mod new-in-080-inside-claude-code . Without it, Claude Code switches from its next session. ⚡ optimAIzr This task looks suitable for a cheaper model. Current: Sonnet 5 Suggested: Haiku 4.5 Observed cost: $0.202 / 26 calls Y Apply optimization N Continue D Why? Every finding comes with its own arithmetic: what the traffic costs now, what it would cost after, and how far to trust the figure. --why prints the full calculation and every assumption. MEDIUM 441 mechanical calls ran on an over-specified model $5.76/mo est. | $70.12/yr | needs verification | model-selection now $14.07 - after $6.75 441 calls, 12% of spend confidence medium quality impact medium basis estimated optimaizr verify replays your own recorded requests on the cheaper option and scores the answers against your quality bar, so you never trade cost for worse output. php PASS 40 samples replayed cost/call $0.0121 - $0.0034 projected $61.40/mo saved this check cost you $0.38 Quality checks ok no-refusal candidate 40/40, baseline 40/40 ok tool-name-matches candidate 39/40, baseline 39/40 On Claude Pro, Max or Team, --plan pro shows your 5-hour sessions and how much of each goes on waste. On ChatGPT plans it reads OpenAI's own meter from Codex. On a company budget, --budget 300 names the day the money runs out. ChatGPT Plus $20.00/mo what you pay API-equivalent $117.72/mo 5.9x what you pay 5-hour window 82% used · resets 01:49 · a full window ~$4.76 Weekly window 38% used · resets Sep 25, 22:49 Waste 9% fix it and you'd hit the limits ~10% later | Source | Setup | |---|---| | Claude Code | None. Reads ~/.claude/projects . | | Codex | None. Reads ~/.codex/sessions . | | Your Anthropic/OpenAI app | One line: optimaizr.wrap new Anthropic | | A usage export CSV, JSON | optimaizr import usage.csv | 13 detectors cover oversized models, cache misses, bloated prompts, repeated file reads, retry loops, runaway reasoning, cost spikes and more. | Command | What it answers | |---|---| | optimaizr profile | Where am I wasting the most? | | optimaizr why | Where does the money go? | | optimaizr live | What is wasting tokens right now? | | optimaizr mod | Is the Claude Code mod installed and running? | | optimaizr recommend | What can I change, ranked by saving? | | optimaizr simulate