Claude 2vsClaude Instant 1.2
Claude 2 | Claude Instant 1.2 | |
|---|---|---|
| Specifications | ||
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 100k | 100k |
| Benchmarks | ||
HumanEvalFunction synthesis — 164 small Python problems: the AI is given a function's description and has to write the working function. This was the coding benchmark of the GPT-3.5 and GPT-4 era, before the field moved to fixing real bugs in real repositories. Higher is better. | 71.2% | 58.7% |
GSM8KGrade-school math — Grade-school maths word problems that take a few steps of arithmetic to work through. It separated the models of 2022 and 2023 sharply, then saturated. One caveat on the historical numbers: OpenAI included part of the GSM8K training set in GPT-4's pre-training mix, so GPT-4's score is not a clean few-shot result. Higher is better. | 88% | 86.7% |
| BenchmarksPublished by one model only | ||
MMLUGeneral knowledge — A 57-subject multiple-choice exam — history, law, medicine, maths — that was the standard measure of how much a model knows from 2020 until roughly 2024, when frontier scores crowded into the high 80s and labs moved on to harder tests. The scores here were published years apart under different testing setups, so read them as a historical record rather than a like-for-like ranking. Higher is better. | 78.5% | — |
| Overview | ||
| Company | Anthropic | Anthropic |
| Release date | Jul 11 2023 | Aug 9 2023 |
| Access | Proprietary | Proprietary |
Other comparisons
Claude 2vsGPT-6 AstraClaude Instant 1.2vsGPT-6 AstraClaude 2vsGemini 3.8 FlashClaude Instant 1.2vsGemini 3.8 FlashClaude 2vsMuse Spark 1.3Claude Instant 1.2vsMuse Spark 1.3Claude 2vsGrok 4.6Claude Instant 1.2vsGrok 4.6Claude 2vsDeepSeek-V4.1-FlashClaude Instant 1.2vsDeepSeek-V4.1-FlashClaude 2vsMistral Medium 3.5Claude Instant 1.2vsMistral Medium 3.5
Frequently asked questions
Claude 2 leads Claude Instant 1.2 on 2 of the 2 benchmarks they both report (HumanEval, GSM8K). Claude 2 shipped 29 days before Claude Instant 1.2, so benchmark comparisons should account for the intervening progress.
Context windows are 100k (Claude 2) vs 100k (Claude Instant 1.2).
On HumanEval, Claude 2 leads at 71.2% vs Claude Instant 1.2 at 58.7%. On GSM8K, Claude 2 leads at 88% vs Claude Instant 1.2 at 86.7%.