o3 vs Pixtral 12B

Compare o3 and Pixtral 12B: 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 Pixtral 12B
CategoryReasoningVision
Parameters~1T12B
Context Window200K128K
Input Price$0.10/1M tokens$0.02/1M tokens
Output Price$0.40/1M tokens$0.04/1M tokens
Latency~2000ms~200ms

Choose o3 when:

  • ✓ Complex calculations
  • ✓ Multi-factor analysis
  • ✓ Research-grade work
Key Strengths:

Extended thinking, Complex logic, Mathematical reasoning

Choose Pixtral 12B when:

  • ✓ Simple image tasks
  • ✓ Classification
  • ✓ OCR
Key Strengths:

Low cost vision, Fast, Compact

Verdict: o3 vs Pixtral 12B

For cost efficiency, Pixtral 12B wins at $0.02/1M input tokens. For speed, o3 is faster at ~2000ms. o3 excels at Complex calculations while Pixtral 12B is better for Simple image tasks. 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 costs $0.10/1M input tokens and $0.40/1M output tokens. Pixtral 12B costs $0.02 input and $0.04 output. Pixtral 12B is 5.0x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

o3 has a 200K context window with ~2000ms latency. Pixtral 12B offers 128K context at ~200ms. o3 has the larger context window.

Best For

o3 (Reasoning) is optimized for: Complex calculations, Multi-factor analysis, Research-grade work. Pixtral 12B (Vision) works best for: Simple image tasks, Classification, OCR.

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

# Use Pixtral 12B
response_b = client.chat.completions.create(
    model="pixtral-12b",
    messages=[{"role": "user", "content": "Your question here"}]
)

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Frequently Asked Questions

Which is better, o3 or Pixtral 12B?

o3 (Reasoning, ~1T) offers Extended thinking. Pixtral 12B (Vision, 12B) offers Low cost vision. Choose o3 for Complex calculations or Pixtral 12B for Simple image tasks.

How much does o3 cost vs Pixtral 12B?

o3: $0.10/1M input, $0.40/1M output. Pixtral 12B: $0.02/1M input, $0.04/1M 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 and Pixtral 12B 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.