> Claude Instant is a closed AI model from Anthropic, released 9 Aug 2023. Index score 88 (GPT-4 = 100), rank 209 of 229 ranked models.

[Models](https://themodelindex.org/models/) /[Anthropic](https://themodelindex.org/labs/anthropic/)

# Claude Instant

Anthropic

Released 9 Aug 2023

Closed

[Compare](https://themodelindex.org/compare/claude-instant-vs-llama-2/)

8871–105

Index score

#209 · provisional, limited data

0/ 8

Core tests taken

0 of 6 areas · plus 2 anchor tests

−12

Versus the frontier at release

best then: GPT-4

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Price per million tokens

no public API price found

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Context window

tokens it reads at once

## Where it sits · on the frontier

_Chart: Model Index score of every scored model since late 2022, with the best closed and best open model over time_

GPT-4 reached this score 5 months earlier.

## Test results · by area · tick = best by any model

Show 2 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

no result

Humanity's Last Exam

no result

Maths

no evidence yet

FrontierMath T1-3

no result

Coding

no evidence yet

SWE-bench Verified

no result

Terminal-Bench

no result

Agents

evidence

APEX-Agents

no result

Novel problems

no evidence yet

ARC-AGI-2

no result

Long tasks

no evidence yet

METR time horizon

no result

Independent results from the Epoch AI benchmarking hub, best reasoning setting. The core tests are shown here; anchor tests also inform the score and can be shown above.

## What others say · rank on each leaderboard

The Model Index

independent tests, our method

#209

of 219 · 88

Epoch Capabilities Index

overall capability from many benchmarks

#164

of 239 · 120.3

Further left is better. Leaderboards measure different things: LMArena is people voting blind between two answers, the others are test scores. Click any row for the source.

## Best at · top three among current models

Not in the top three among current models on any category we track.

Where this model places in the top three of today's models, on category leaderboards and on our core tests.

## Where to use it · prices checked 1 Oct 2026

#### From the lab

Claude

app · subscription

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Claude API

API

↗

Provider prices come from OpenRouter's live listing; going direct to a provider can differ. Subscriptions are the lab's own apps.

## Facts and sources

Released

9 Aug 2023

Announcement

not linked yet

Release entry

–

Scored as

Claude Instant

Artificial Analysis index

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Output speed

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Hugging Face

closed weights

## Anthropic releases · around this one

Claude

Closed

14 MAR 2023

Claude 2

Closed

11 JUL 2023

index 91

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Source: https://themodelindex.org/models/claude-instant/ · The Model Index · data as of 2026-10-01