Compare AI Models

Put any models head-to-head — benchmarks, context window, parameters, weights and pricing in one view. Pick up to four; the 🏆 marks the leader on each benchmark.

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Claude Fable 5.1GPT-5.5Claude Opus 4.8

Claude Fable 5.1

Anthropic

GPT-5.5

OpenAI

Claude Opus 4.8

Anthropic

Type

Multimodal

Context

1000K tokens

1050K tokens

1000K tokens

Parameters

—

Weights

🔒 Proprietary

Benchmarks

Terminal-Bench-Science 0.1

52.6

—

Terminal-Bench 4.0

55.8

—

AutomationBench

31.4

—

CursorBench 3.2.0

73.4

—

Humanity's Last Exam (with tools)

—

OSWorld 2.0 (strict)

41.7

—

MMLU

—

GPQA Diamond

—

SWE-bench Verified

—

AIME (math)

—

100

—

Pricing

API $10 / 1M input, $0.25 / 1M cache reads, $12.50 / 1M 5-minute cache writes ($20 for 1-hour), $50 / 1M output. Batch API 50% off. Available on the Claude API, AWS, Google Cloud and Microsoft Azure.

API ~$5 / 1M input, ~$30 / 1M output. ChatGPT Plus ₹1,999/mo (incl. GST), Pro tier for heaviest use; not on Free.

API ~$5 / 1M input, ~$25 / 1M output. Claude Pro/Max (~$20/mo, no India INR plan — ~₹1,800+ after FX/tax).

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Benchmark scores are widely-reported public figures (higher is better) for relative comparison — they vary by source; check the provider for official results. 🏆 = best among the models shown.