Compare models. Find the differences.

Add, remove, or change models in the table.

Benchmark snapshot

0 benchmarks in common.

4 models selected. 0 benchmarks in common.

Reported scores; test settings may differ.

Reported benchmark results for Claude Opus 4 4.1 Thinking, GPT-5.1 Thinking, Grok 4 Fast Non-Thinking, Inkling Thinking
Benchmark
Anthropic
OpenAI
xAI
Thinking Machines
Arena ELOHuman preference1,450Not in our dataset1,4181,442
LiveBench 1.0General reasoningNot in our datasetNot in our datasetNot in our dataset71.9%
GPQA DiamondScientific knowledge81.0%88.1%84.3%Not in our dataset
HLEAcademic reasoning11.7%26.5%17.6%Not in our dataset
MMLU ProMulti-task understanding87.3%Not in our datasetNot in our datasetNot in our dataset
SimpleBenchCommonsense reasoning60.0%Not in our dataset56.0%50.0%
AIME 2025Mathematics78.0%Not in our dataset92.0%Not in our dataset
SWE-Bench VerifiedAgentic coding74.5%76.3%50.6%Not in our dataset
Tau-BenchAgentic tool use86.8%Not in our datasetNot in our datasetNot in our dataset
Terminal-BenchAgentic terminal38.0%Not in our datasetNot in our datasetNot in our dataset
ARC-AGI-2Visual reasoningNot in our dataset17.6%Not in our dataset36.5%
Pricing & context Published USD rates per 1M tokens
SpecificationClaude Opus 4 4.1 ThinkingGPT-5.1 ThinkingGrok 4 Fast Non-ThinkingInkling Thinking
Input$15$1.25$0.2$1
Output$75$10$0.5$4.05
Context window200K400K2.0M524K
Pricing detailsExplore pricing →Explore pricing →Explore pricing →Explore pricing →
How to read this comparison

Each column keeps the exact model version you selected. Shared benchmarks are the intersection of their reported results; “all coverage” also shows where evidence is missing. Missing results never count as zero.

These are published benchmark scores, not a controlled head-to-head test. The available evidence does not establish matching evaluation settings, so we show no cross-model winner highlights or deltas. Composite quality scores are omitted because they can summarize different benchmark sets.

Scores and statistics are computed upstream. This page reads a fixed data snapshot; its date describes the snapshot, not the date of every measurement.