Model Comparison

Claude 3.5 Haiku vs GPT OSS 120B High

GPT OSS 120B High significantly outperforms across most benchmarks. GPT OSS 120B High is 8.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Claude 3.5 Haiku outperforms in 0 benchmarks, while GPT OSS 120B High is better at 2 benchmarks (GPQA, MMLU-Pro).

GPT OSS 120B High significantly outperforms across most benchmarks.

Tue Apr 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT OSS 120B High costs less

For input processing, Claude 3.5 Haiku ($0.80/1M tokens) is 8.0x more expensive than GPT OSS 120B High ($0.10/1M tokens).

For output processing, Claude 3.5 Haiku ($4.00/1M tokens) is 8.0x more expensive than GPT OSS 120B High ($0.50/1M tokens).

In conclusion, Claude 3.5 Haiku is more expensive than GPT OSS 120B High.*

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

Lowest available price from all providers
Tue Apr 14 2026 • llm-stats.com
Anthropic
Claude 3.5 Haiku
Input tokens$0.80
Output tokens$4.00
Best providerAWS Bedrock
OpenAI
GPT OSS 120B High
Input tokens$0.10
Output tokens$0.50
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude 3.5 Haiku accepts 200,000 input tokens compared to GPT OSS 120B High's 131,072 tokens. Claude 3.5 Haiku can generate longer responses up to 200,000 tokens, while GPT OSS 120B High is limited to 131,072 tokens.

Anthropic
Claude 3.5 Haiku
Input200,000 tokens
Output200,000 tokens
OpenAI
GPT OSS 120B High
Input131,072 tokens
Output131,072 tokens
Tue Apr 14 2026 • llm-stats.com

License

Usage and distribution terms

Claude 3.5 Haiku is licensed under a proprietary license, while GPT OSS 120B High uses Apache 2.0.

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

Claude 3.5 Haiku

Proprietary

Closed source

GPT OSS 120B High

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude 3.5 Haiku was released on 2024-10-22, while GPT OSS 120B High was released on 2025-08-05.

GPT OSS 120B High is 10 months newer than Claude 3.5 Haiku.

Claude 3.5 Haiku

Oct 22, 2024

1.5 years ago

GPT OSS 120B High

Aug 5, 2025

8 months ago

9mo 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 3.5 Haiku is available from Bedrock, Google, Anthropic. GPT OSS 120B High is available from OpenAI.

Claude 3.5 Haiku

bedrock logo
AWS Bedrock
Input Price:Input: $0.80/1MOutput Price:Output: $4.00/1M
google logo
Google
Input Price:Input: $0.80/1MOutput Price:Output: $4.00/1M
anthropic logo
Anthropic
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M

GPT OSS 120B High

openai logo
OpenAI
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
OpenAI
Less expensive input tokens
Less expensive output tokens
Has open weights
Higher GPQA score (80.9% vs 41.6%)
Higher MMLU-Pro score (80.7% vs 65.0%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3.5 Haiku
OpenAI
GPT OSS 120B High

FAQ

Common questions about Claude 3.5 Haiku vs GPT OSS 120B High

GPT OSS 120B High significantly outperforms across most benchmarks. Claude 3.5 Haiku is made by Anthropic and GPT OSS 120B High is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Claude 3.5 Haiku scores HumanEval: 88.1%, MGSM: 85.6%, DROP: 83.1%, MATH: 69.4%, MMLU-Pro: 65.0%. GPT OSS 120B High scores AIME 2025: 92.5%, MMMLU: 83.8%, LiveCodeBench v6: 81.9%, GPQA: 80.9%, MMLU-Pro: 80.7%.
GPT OSS 120B High is 8.0x cheaper for input tokens. Claude 3.5 Haiku costs $0.80/M input and $4.00/M output via bedrock. GPT OSS 120B High costs $0.10/M input and $0.50/M output via openai.
Claude 3.5 Haiku supports 200K tokens and GPT OSS 120B High supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 131K), input pricing ($0.80 vs $0.10/M), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.
Claude 3.5 Haiku is developed by Anthropic and GPT OSS 120B High is developed by OpenAI.