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GPT-5.6 Sol Pro vs Llama 3 8B Instruct

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for GPT-5.6 Sol Pro and Llama 3 8B Instruct.

OpenAI

GPT-5.6 Sol Pro

GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

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Meta

Llama 3 8B Instruct

Meta's latest class of model (Llama 3) launched with a variety of sizes & flavors. This 8B instruct-tuned version was optimized for high quality dialogue usecases. It has demonstrated strong...

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Technical Specifications

SpecificationGPT-5.6 Sol ProLlama 3 8B Instruct
ProviderOpenAIMeta
Context Window1,050,000 tokens8,192 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apiself hostable
Production Stabilitybetastable
API AvailableYesYes
Released Date2026-07-092024-04-18

API Pricing Comparison

Input Price per Million Tokens

GPT-5.6 Sol Pro

$5.00

Llama 3 8B Instruct

$0.14

Output Price per Million Tokens

GPT-5.6 Sol Pro

$30.00

Llama 3 8B Instruct

$0.14

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

GPT-5.6 Sol Pro Quirks & Gotchas

No developer gotchas reported.

Llama 3 8B Instruct Quirks & Gotchas

No developer gotchas reported.