Claude 3 Haiku vs GPT OSS 20B High Comparison

Comparing Claude 3 Haiku and GPT OSS 20B High across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude 3 Haiku outperforms in 0 benchmarks, while GPT OSS 20B High is better at 1 benchmark (GPQA).

GPT OSS 20B High significantly outperforms across most benchmarks.

Mon Mar 16 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT OSS 20B High costs less

For input processing, Claude 3 Haiku ($0.25/1M tokens) is 2.5x more expensive than GPT OSS 20B High ($0.10/1M tokens).

For output processing, Claude 3 Haiku ($1.25/1M tokens) is 2.5x more expensive than GPT OSS 20B High ($0.50/1M tokens).

In conclusion, Claude 3 Haiku is more expensive than GPT OSS 20B High.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Mon Mar 16 2026 • llm-stats.com

Claude 3 Haiku

Input tokens$0.25

Output tokens$1.25

Best providerAnthropic

GPT OSS 20B High

Input tokens$0.10

Output tokens$0.50

Best providerOpenAI

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Context Window

Maximum input and output token capacity

Claude 3 Haiku accepts 200,000 input tokens compared to GPT OSS 20B High's 131,072 tokens. Claude 3 Haiku can generate longer responses up to 200,000 tokens, while GPT OSS 20B High is limited to 131,072 tokens.

Claude 3 Haiku

Input200,000 tokens

Output200,000 tokens

GPT OSS 20B High

Input131,072 tokens

Output131,072 tokens

Mon Mar 16 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Haiku supports multimodal inputs, whereas GPT OSS 20B High does not.

Claude 3 Haiku can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3 Haiku

Text

Images

Audio

Video

GPT OSS 20B High

Text

Images

Audio

Video

License

Usage and distribution terms

Claude 3 Haiku is licensed under a proprietary license, while GPT OSS 20B High uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

Claude 3 Haiku

Proprietary

Closed source

GPT OSS 20B High

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude 3 Haiku was released on 2024-03-13, while GPT OSS 20B High was released on 2025-08-05.

GPT OSS 20B High is 17 months newer than Claude 3 Haiku.

Claude 3 Haiku

Mar 13, 2024

2.0 years ago

GPT OSS 20B High

Aug 5, 2025

7 months ago

1.4yr newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Claude 3 Haiku is available from Anthropic, Bedrock, Google. GPT OSS 20B High is available from OpenAI. The availability of providers can affect quality of the model and reliability.