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Claude Haiku 5.5 vs GPT-6 Luna: same price, different bill

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100 runs · score · cost

Model	Galton board	Browser OS	Astronomical clock	Aquarium	Motion intro	All
Haiku 5.5high	14/15$0.049	19/19$0.060	14/14$0.035	15/15$0.049	17/17$0.018	79/80$0.21 · 28m23s
Haiku 5.5low	14/15$0.027	18/19$0.026	14/14$0.025	15/15$0.025	17/17$0.010	78/80$0.11 · 15m07s
Haiku 5.5medium	14/15$0.036	19/19$0.034	14/14$0.023	15/15$0.035	17/17$0.010	79/80$0.14 · 18m48s
Haiku 5.5max	0/15$0.26	0/19$0.26	0/14$0.26	5/15$0.26	4/17$0.22	9/80$1.25 · 153m16s
Opus 5.5medium	14/15$1.06	19/19$2.30	14/14$0.66	15/15$0.90	17/17$0.35	79/80$5.27 · 38m39s
Opus 5.5high	14/15$2.08	18/19$3.82	14/14$1.26	15/15$1.75	17/17$0.48	78/80$9.40 · 61m03s
Sonnet 5.5high	14/15$0.73	19/19$0.95	14/14$0.49	15/15$1.06	17/17$0.18	79/80$3.41 · 39m01s
GPT-6 Lunahigh	14/15$0.006	19/19$0.008	14/14$0.006	15/15$0.005	17/17$0.004	79/80$0.028 · 7m50s
GPT-6 Lunamedium	15/15$0.005	16/19$0.007	14/14$0.005	15/15$0.004	17/17$0.002	77/80$0.024 · 6m49s
GPT-6 Lunamax	14/15$0.013	18/19$0.015	13/14$0.012	15/15$0.011	17/17$0.009	77/80$0.060 · 15m01s
GPT-6.1 Solmedium	14/15$0.13	19/19$0.24	14/14$0.11	15/15$0.084	17/17$0.056	79/80$0.61 · 18m31s
GPT-6.1 Solhigh	14/15$0.15	18/19$0.23	14/14$0.23	15/15$0.14	17/17$0.064	78/80$0.82 · 30m27s

Anthropic models run in Claude Code 2.1.296 · OpenAI models run in Codex CLI 0.162.0 · no harness of our own (yet) · why it matters