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ModelTape / Models / Claude 3 Sonnet
Anthropic · API-only (closed weights)

Claude 3 Sonnet

Claude 3 Sonnet is an API-only (closed weights) language model from Anthropic, released February 29, 2024. On the Epoch Capabilities Index it scores 119.5, rank 186 of 256 rated models.

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Lab
Anthropic
Released
February 29, 2024
Weights
API-only (closed weights)
Parameters
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Context
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Price / M tokens
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Epoch ECI
119.5 #186

Strengths by category

ModelTape's 0–100 fit on Epoch AI benchmark results.

CategoryScoreBased on
Math9.2MATH level 5, OTIS Mock AIME 2024-2025
Knowledge26.8GPQA diamond, MMLU

Benchmark results

Benchmark (Epoch AI)Score
MMLU67.9%
GPQA Diamond21.7%
MATH level 518.2%
OTIS Mock AIME2.4%

Links

Epoch AI benchmarks

Models with a similar score

Llama 3.2 90B · Qwen2-72B · GPT-4 (Mar 2023) · Llama 3-70B · DeepSeek-V2 (MoE-236B, May 2024) · Gemini 1.5 Flash (May 2024) · GPT-4 (Jun 2023) · Mistral Large

More from Anthropic

Claude Fable 5.2 · Claude Haiku 5.5 · Claude Sonnet 5.5 · Claude Opus 5.5 · Claude Fable 5.1 · Claude Opus 5 · Claude Sonnet 5 · Claude Fable 5

Data updated Thu, 12 Nov 2026 09:42 UTC. Benchmarks, Capabilities Index and model announcements: Epoch AI, “Capabilities & benchmarking” and “Data on AI models” (CC BY 4.0); category scores are ModelTape's own fit on Epoch's results. Releases and prices: models.dev (MIT). Sizes and quantizations: Hugging Face. “Runs on” figures are estimates from model size, quantization and memory bandwidth (±30–50%).
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