AI model speed & cost comparison

Averaged across all 25 tasks on this site, for all 7 models. Same method as every other page here: recorded runs where they exist, clearly-labelled placeholder profiles where they don't — never a marketing number.

Is Claude faster than ChatGPT?

Averaged across every task and every model on each side: OpenAI's models come out faster overall (516× vs 717× human speed, Anthropic vs OpenAI). Accuracy averages close, 84% vs 79%, and cost averages $0.01 vs $0.0061 per task. But that average hides real variation — the fastest single model here is GPT-5.6 Luna (1,240× on average), and tier-for-tier the gap narrows or flips.

Averages are a starting point, not a verdict: Compare AI Models lets you race any specific Claude model against any specific GPT model on one task, at one effort level, and see the real numbers for that exact pairing.

Fastest AI model overall

Ranked by average speed multiplier over a typical person, across all 25 tasks:

  1. GPT-5.6 Luna (OpenAI) — 1,240× faster than a person on average, 63% average accuracy
  2. Haiku 4.5 (Anthropic) — 1,127× faster than a person on average, 64% average accuracy
  3. GPT-5.6 Terra (OpenAI) — 653× faster than a person on average, 82% average accuracy

Cheapest AI model overall

Ranked by average cost per task (same tasks, same token-count method, different price per token per model):

  1. GPT-5.6 Luna (OpenAI) — $0.0007 average per task, $0.02 total across all 25 tasks
  2. Haiku 4.5 (Anthropic) — $0.0008 average per task, $0.02 total across all 25 tasks
  3. GPT-5.6 Terra (OpenAI) — $0.0029 average per task, $0.07 total across all 25 tasks

The most expensive model here averages roughly 28× the cost of the cheapest, for the same set of tasks — that gap is the entire reason this site shows tokens and cost on every result, not just speed.

Most accurate AI model overall

Ranked by average accuracy against each task's scoring rubric:

  1. Fable 5 (Anthropic) — 97% average accuracy, 78× average speed
  2. Opus 4.8 (Anthropic) — 92% average accuracy, 238× average speed
  3. GPT-5.6 Sol (OpenAI) — 91% average accuracy, 258× average speed

The fastest model and the most accurate model are rarely the same one — see the FAQ for why speed, cost, and accuracy are three separate facts about a model, not one score.

Best model per difficulty tier

This site's own recommendation logic, per tier and provider — the same "good fit" judgment shown on every result:

Tier
Anthropic pick
OpenAI pick
Simple
Haiku 4.5
GPT-5.6 Luna
Intermediate
Sonnet 5
GPT-5.6 Terra
Complex
Opus 4.8
GPT-5.6 Sol

All figures are averages of this site's own per-task numbers — recorded weekly where a run exists, a clearly-labelled placeholder profile otherwise. See how we measure →. Want one specific pairing instead of an average? Discover AI Speed races one task at a time; Compare AI Models runs two models head-to-head.