Model Comparison

Claude 3 Opus vs Ministral 8B InstructWhich is better in 2026?

Claude 3 Opus significantly outperforms across most benchmarks. Ministral 8B Instruct is 300.0x cheaper per token.

Verdict: Claude 3 Opus vs Ministral 8B Instruct — which is better?

Claude 3 Opus (by Anthropic) and Ministral 8B Instruct (by Mistral AI) 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 Opus outperforms in 4 benchmarks (ARC-C, HumanEval, MATH, MMLU), while Ministral 8B Instruct is better at 0 benchmarks. Claude 3 Opus significantly outperforms across most benchmarks.

On price, Ministral 8B Instruct is roughly 300.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude 3 Opus also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Claude 3 Opus if…

  • you want the strongest raw capability — it leads on 4 of 4 shared benchmarks
  • you process long inputs — it offers a 200,000 token context window

Choose Ministral 8B Instruct if…

  • cost matters — it's about 300.0x cheaper per token
  • you want the most recent training data — it shipped Oct 2024
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude 3 Opus outperforms in 4 benchmarks (ARC-C, HumanEval, MATH, MMLU), while Ministral 8B Instruct is better at 0 benchmarks.

Claude 3 Opus significantly outperforms across most benchmarks.

Sat Jun 06 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Ministral 8B Instruct costs less

For input processing, Claude 3 Opus ($15.00/1M tokens) is 150.0x more expensive than Ministral 8B Instruct ($0.10/1M tokens).

For output processing, Claude 3 Opus ($75.00/1M tokens) is 750.0x more expensive than Ministral 8B Instruct ($0.10/1M tokens).

In conclusion, Claude 3 Opus is more expensive than Ministral 8B Instruct.*

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

Lowest available price from all providers
Sat Jun 06 2026 • llm-stats.com
Anthropic
Claude 3 Opus
Input tokens$15.00
Output tokens$75.00
Best providerAnthropic
Mistral AI
Ministral 8B Instruct
Input tokens$0.10
Output tokens$0.10
Best providerMistral
Notice missing or incorrect data?Start an Issue

Context Window

Maximum input and output token capacity

Claude 3 Opus accepts 200,000 input tokens compared to Ministral 8B Instruct's 128,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while Ministral 8B Instruct is limited to 128,000 tokens.

Anthropic
Claude 3 Opus
Input200,000 tokens
Output200,000 tokens
Mistral AI
Ministral 8B Instruct
Input128,000 tokens
Output128,000 tokens
Sat Jun 06 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Opus supports multimodal inputs, whereas Ministral 8B Instruct does not.

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

Claude 3 Opus

Text
Images
Audio
Video

Ministral 8B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude 3 Opus is licensed under a proprietary license, while Ministral 8B Instruct uses Mistral Research License.

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

Claude 3 Opus

Proprietary

Closed source

Ministral 8B Instruct

Mistral Research License

Open weights

Release Timeline

When each model was launched

Claude 3 Opus was released on 2024-02-29, while Ministral 8B Instruct was released on 2024-10-16.

Ministral 8B Instruct is 8 months newer than Claude 3 Opus.

Claude 3 Opus

Feb 29, 2024

2.3 years ago

Ministral 8B Instruct

Oct 16, 2024

1.6 years ago

7mo 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 Opus is available from Anthropic, Bedrock, Google. Ministral 8B Instruct is available from Mistral AI.

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

Ministral 8B Instruct

mistral logo
Mistral
Input Price:Input: $0.10/1MOutput Price:Output: $0.10/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Key Takeaways

Larger context window (200,000 tokens)
Supports multimodal inputs
Higher ARC-C score (96.4% vs 71.9%)
Higher HumanEval score (84.9% vs 34.8%)
Higher MATH score (60.1% vs 54.5%)
Higher MMLU score (86.8% vs 65.0%)
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Opus
Mistral AI
Ministral 8B Instruct

FAQ

Common questions about Claude 3 Opus vs Ministral 8B Instruct.

Which is better, Claude 3 Opus or Ministral 8B Instruct?

Claude 3 Opus significantly outperforms across most benchmarks. Claude 3 Opus is made by Anthropic and Ministral 8B Instruct is made by Mistral AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude 3 Opus compare to Ministral 8B Instruct in benchmarks?

Claude 3 Opus scores ARC-C: 96.4%, HellaSwag: 95.4%, GSM8k: 95.0%, MGSM: 90.7%, BIG-Bench Hard: 86.8%. Ministral 8B Instruct scores MT-Bench: 83.0%, Winogrande: 75.3%, ARC-C: 71.9%, Arena Hard: 70.9%, MBPP pass@1: 70.0%.

Is Claude 3 Opus cheaper than Ministral 8B Instruct?

Ministral 8B Instruct is 150.0x cheaper for input tokens. Claude 3 Opus costs $15.00/M input and $75.00/M output via anthropic. Ministral 8B Instruct costs $0.10/M input and $0.10/M output via mistral.

What are the context window sizes for Claude 3 Opus and Ministral 8B Instruct?

Claude 3 Opus supports 200K tokens and Ministral 8B Instruct supports 128K 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 Opus and Ministral 8B Instruct?

Key differences include context window (200K vs 128K), input pricing ($15.00 vs $0.10/M), multimodal support (yes vs no), licensing (Proprietary vs Mistral Research License). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3 Opus and Ministral 8B Instruct?

Claude 3 Opus is developed by Anthropic and Ministral 8B Instruct is developed by Mistral AI.