Model Comparison

Claude 3.5 Haiku vs Claude 3 OpusWhich is better in 2026?

Claude 3 Opus has a slight edge in benchmark performance. Claude 3.5 Haiku is 18.8x cheaper per token.

Verdict: Claude 3.5 Haiku vs Claude 3 Opus — which is better?

Claude 3.5 Haiku (by Anthropic) and Claude 3 Opus (by Anthropic) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Claude 3.5 Haiku outperforms in 2 benchmarks (HumanEval, MATH), while Claude 3 Opus is better at 3 benchmarks (GPQA, MGSM, MMLU-Pro). Claude 3 Opus has a slight edge in benchmark performance.

On price, Claude 3.5 Haiku is roughly 18.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Choose Claude 3.5 Haiku if…

  • cost matters — it's about 18.8x cheaper per token
  • you want the most recent training data — it shipped Oct 2024

Choose Claude 3 Opus if…

  • you want the strongest raw capability — it leads on 4 of 6 shared benchmarks
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Performance Benchmarks

Comparative analysis across standard metrics

6 benchmarks

Claude 3.5 Haiku outperforms in 2 benchmarks (HumanEval, MATH), while Claude 3 Opus is better at 3 benchmarks (GPQA, MGSM, MMLU-Pro).

Claude 3 Opus has a slight edge in benchmark performance.

Tue Jun 09 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Claude 3.5 Haiku costs less

For input processing, Claude 3.5 Haiku ($0.80/1M tokens) is 18.8x cheaper than Claude 3 Opus ($15.00/1M tokens).

For output processing, Claude 3.5 Haiku ($4.00/1M tokens) is 18.8x cheaper than Claude 3 Opus ($75.00/1M tokens).

In conclusion, Claude 3 Opus is more expensive than Claude 3.5 Haiku.*

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

Lowest available price from all providers
Tue Jun 09 2026 • llm-stats.com
Anthropic
Claude 3.5 Haiku
Input tokens$0.80
Output tokens$4.00
Best providerAWS Bedrock
Anthropic
Claude 3 Opus
Input tokens$15.00
Output tokens$75.00
Best providerAnthropic
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 200,000 tokens. Both models can generate responses up to 200,000 tokens.

Anthropic
Claude 3.5 Haiku
Input200,000 tokens
Output200,000 tokens
Anthropic
Claude 3 Opus
Input200,000 tokens
Output200,000 tokens
Tue Jun 09 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Opus supports multimodal inputs, whereas Claude 3.5 Haiku does not.

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

Claude 3.5 Haiku

Text
Images
Audio
Video

Claude 3 Opus

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude 3.5 Haiku

Proprietary

Closed source

Claude 3 Opus

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3.5 Haiku was released on 2024-10-22, while Claude 3 Opus was released on 2024-02-29.

Claude 3.5 Haiku is 8 months newer than Claude 3 Opus.

Claude 3.5 Haiku

Oct 22, 2024

1.6 years ago

7mo newer
Claude 3 Opus

Feb 29, 2024

2.3 years ago

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. Claude 3 Opus is available from Anthropic, Bedrock, Google.

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

Claude 3 Opus

anthropic logo
Anthropic
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
google logo
Google
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Less expensive input tokens
Less expensive output tokens
Higher HumanEval score (88.1% vs 84.9%)
Higher MATH score (69.4% vs 60.1%)
Anthropic
Supports multimodal inputs
Higher GPQA score (50.4% vs 41.6%)
Higher MGSM score (90.7% vs 85.6%)
Higher MMLU-Pro score (68.5% vs 65.0%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3.5 Haiku
Anthropic
Claude 3 Opus

FAQ

Common questions about Claude 3.5 Haiku vs Claude 3 Opus.

Which is better, Claude 3.5 Haiku or Claude 3 Opus?

Claude 3 Opus has a slight edge in benchmark performance. Claude 3.5 Haiku is made by Anthropic and Claude 3 Opus is made by Anthropic. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude 3.5 Haiku compare to Claude 3 Opus in benchmarks?

Claude 3.5 Haiku scores HumanEval: 88.1%, MGSM: 85.6%, DROP: 83.1%, MATH: 69.4%, MMLU-Pro: 65.0%. Claude 3 Opus scores ARC-C: 96.4%, HellaSwag: 95.4%, GSM8k: 95.0%, MGSM: 90.7%, BIG-Bench Hard: 86.8%.

Is Claude 3.5 Haiku cheaper than Claude 3 Opus?

Claude 3.5 Haiku is 18.8x cheaper for input tokens. Claude 3.5 Haiku costs $0.80/M input and $4.00/M output via bedrock. Claude 3 Opus costs $15.00/M input and $75.00/M output via anthropic.

What are the context window sizes for Claude 3.5 Haiku and Claude 3 Opus?

Claude 3.5 Haiku supports 200K tokens and Claude 3 Opus supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude 3.5 Haiku and Claude 3 Opus?

Key differences include input pricing ($0.80 vs $15.00/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

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