Claude Instant 1.2vsGPT-4
Claude Instant 1.2 | GPT-4 | |
|---|---|---|
| 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 | 8k |
| API pricingUSD per 1M tokens · lower wins | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $30.00 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | — | $60.00 |
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | — | $30.00Azure |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | — | $60.00Azure |
| 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. | 58.7% | 67% |
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. | 86.7% | 92% |
| 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. | — | 86.4% |
| Overview | ||
| Company | Anthropic | OpenAI |
| Release date | Aug 9 2023 | Mar 14 2023 |
| Access | Proprietary | Proprietary |
Other comparisons
Frequently asked questions
GPT-4 leads Claude Instant 1.2 on 2 of the 2 benchmarks they both report (HumanEval, GSM8K). Only GPT-4 has a verified first-party API price: $30.00 per million input tokens and $60.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude Instant 1.2. GPT-4 shipped 148 days before Claude Instant 1.2, so benchmark comparisons should account for the intervening progress.
Context windows are 100k (Claude Instant 1.2) vs 8k (GPT-4).
On HumanEval, GPT-4 leads at 67% vs Claude Instant 1.2 at 58.7%. On GSM8K, GPT-4 leads at 92% vs Claude Instant 1.2 at 86.7%.
Claude Instant 1.2 was released by Anthropic on Aug 9 2023.
GPT-4 was released by OpenAI on Mar 14 2023.
GPT-4 leads on HumanEval — Claude Instant 1.2 58.7% vs GPT-4 67%.
GPT-4 leads on GSM8K — Claude Instant 1.2 86.7% vs GPT-4 92%.
Only GPT-4 has a verified first-party API price: $30.00 per million input tokens and $60.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude Instant 1.2. Rates are pay-as-you-go API prices verified on August 18, 2026.
Claude Instant 1.2 has a 100k context window; GPT-4 has 8k.