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Llama 3.1 70B vs GPT 5.6 Luna

At a glance
MetaLlama 3.1 70B

Meta's 70B model from the Llama 3.1 generation.

60131K ctx$0.40/$0.40 per M#71/92
OpenAIGPT 5.6 Luna

OpenAI's fastest, most affordable GPT-5.6 tier for high-volume, latency-sensitive work.

1.1M ctx$1.00/$6.00 per M
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
MetaLlama 3.1 70B
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI59.5
Reasoning & Knowledge
Graduate Science44.2%
Math
Math Problems36.7%Competition Math3.6%
Agentic
Terminal Tasks—
OpenAIGPT 5.6 Luna
Reasoning
CodingInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-11
Capability
Capability—
Reasoning & Knowledge
Graduate Science92.3%
Math
Math Problems—Competition Math—
Agentic
Terminal Tasks84.7%
Specs
MetaLlama 3.1 70B
131K
Context
16K
Max output
Jul 2024
Released
OpenAIGPT 5.6 Luna
1.1M
Context
128K
Max output
Jul 2026
Released
Capabilities
MetaLlama 3.1 70B
Vision
Audio
Reasoning
OpenAIGPT 5.6 Luna
Vision
Audio
Reasoning
Pricing
MetaLlama 3.1 70B
Live pricing, shown before you run
Input$0.40/M tokens
Output$0.40/M tokens
OpenAIGPT 5.6 Luna
Live pricing, shown before you run
Input$1.00/M tokens
Output$6.00/M tokens
Cache read$0.10/M tokens
Web search$0.01/search
Chat with Llama 3.1 70BGo to model
Chat with GPT 5.6 LunaGo to model
Frequently Asked Questions: Llama 3.1 70B vs GPT 5.6 Luna▼

Which is better, Llama 3.1 70B or GPT 5.6 Luna?

▼

Both Llama 3.1 70B and GPT 5.6 Luna are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Llama 3.1 70B or GPT 5.6 Luna?

▼

Llama 3.1 70B has a lower blended cost. Llama 3.1 70B: $0.40 input / $0.40 output. GPT 5.6 Luna: $1.00 input / $6.00 output.

Which has a larger context window, Llama 3.1 70B or GPT 5.6 Luna?

▼

GPT 5.6 Luna has a larger context window: Llama 3.1 70B supports 131K tokens vs GPT 5.6 Luna at 1.1M tokens.

Do both Llama 3.1 70B and GPT 5.6 Luna support vision?

▼

GPT 5.6 Luna supports vision/image input, but Llama 3.1 70B does not.

What are the key differences between Llama 3.1 70B and GPT 5.6 Luna?

▼

Key differences: Llama 3.1 70B is significantly cheaper; only GPT 5.6 Luna supports vision input; only GPT 5.6 Luna offers extended reasoning mode. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Llama 3.1 70B and GPT 5.6 Luna for free on idapt.app to see which performs better for your specific needs.

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