o3 Pro vs Code Llama 70B

Compare o3 Pro and Code Llama 70B: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.

Updated 2026-05-21 · By Abhishek Raj · Our methodology

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Feature o3 Pro Code Llama 70B
CategoryReasoningCode
Parameters~1T70B
Context Window200K100K
Input Price$0.15/1M tokens$0.04/1M tokens
Output Price$0.60/1M tokens$0.06/1M tokens
Latency~5000ms~300ms

Choose o3 Pro when:

  • ✓ Research-grade reasoning
  • ✓ Mathematical proofs
  • ✓ Hardest problems
Key Strengths:

Deepest reasoning, Best for hard problems, Highest accuracy

Choose Code Llama 70B when:

  • ✓ Large codebases
  • ✓ Code review
  • ✓ Refactoring
Key Strengths:

100K context, Strong coding, Fill-in-middle

Verdict: o3 Pro vs Code Llama 70B

For cost efficiency, Code Llama 70B wins at $0.04/1M input tokens. For speed, Code Llama 70B is faster at ~300ms. o3 Pro excels at Research-grade reasoning while Code Llama 70B is better for Large codebases. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.

Detailed Analysis

Pricing Comparison

o3 Pro costs $0.15/1M input tokens and $0.60/1M output tokens. Code Llama 70B costs $0.04 input and $0.06 output. Code Llama 70B is 3.8x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

o3 Pro has a 200K context window with ~5000ms latency. Code Llama 70B offers 100K context at ~300ms. o3 Pro has the larger context window.

Best For

o3 Pro (Reasoning) is optimized for: Research-grade reasoning, Mathematical proofs, Hardest problems. Code Llama 70B (Code) works best for: Large codebases, Code review, Refactoring.

Try Both on XALEN

Both models are available through XALEN's OpenAI-compatible API. Switch between them by changing the model parameter:

from xalen import XALEN

client = XALEN(api_key="xln_test_YOUR_KEY")

# Use o3 Pro
response_a = client.chat.completions.create(
    model="o3-pro",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Code Llama 70B
response_b = client.chat.completions.create(
    model="codellama-70b",
    messages=[{"role": "user", "content": "Your question here"}]
)

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Get API Key Try in Playground

Frequently Asked Questions

Which is better, o3 Pro or Code Llama 70B?

o3 Pro (Reasoning, ~1T) offers Deepest reasoning. Code Llama 70B (Code, 70B) offers 100K context. Choose o3 Pro for Research-grade reasoning or Code Llama 70B for Large codebases.

How much does o3 Pro cost vs Code Llama 70B?

o3 Pro: $0.15/1M input, $0.60/1M output. Code Llama 70B: $0.04/1M input, $0.06/1M output. Both available on XALEN with batch processing at 50% discount.

Can I use both models on XALEN?

Yes. XALEN provides 200+ models through a single OpenAI-compatible API. Switch between o3 Pro and Code Llama 70B by changing the model parameter. No code changes needed.

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Last updated: 2026-05-21. Pricing and specifications may change. Check pricing page for latest rates.