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Mistral AI Mistral Large 3 VS OpenAI GPT-5.6 Terra

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, GPT-5.6 Terra is the premium intelligence choice, scoring 29.0% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Mistral Large 3 is 7.5x cheaper to run. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Mistral Large 3 offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GPT-5.6 Terra fully justifies the cost.
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Model Specs

Mistral Large 3

Benchmarks & Scores

Coding (live-code-bench)
34.4%

good at single-file apps, building games & UIs, and scripting new logic

Reasoning (gpqa-diamond)
85.5%

graduate-level science QA

Cost & Performance

Cost (per 1M tokens)7.5x cheaper
$0.75Input: $0.50 | Output: $1.50
Context Window
262.14k tokens
Model Specs

GPT-5.6 Terra

Benchmarks & Scores

Coding (swe-bench-pro)
63.4%

excellent at multi-file repositories, autonomous agents, and industrial codebases

Reasoning (gpqa-diamond)Winner (+7.4%)
92.9%

graduate-level science QA

Cost & Performance

Cost (per 1M tokens)
$5.63Input: $2.50 | Output: $15.00
Context WindowLarger
1.05M tokens

Frequently Asked Questions about Mistral Large 3 vs GPT-5.6 Terra comparison

Mistral Large 3 is cheaper than GPT-5.6 Terra. Mistral Large 3 has a blended cost of $0.75/1M tokens, which is about 7.5x cheaper than GPT-5.6 Terra at $5.63/1M tokens.

For coding tasks, Mistral Large 3 scores 34.4% on live-code-bench (good at single-file apps, building games & UIs, and scripting new logic), while GPT-5.6 Terra scores 63.4% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases).