AXIOM
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Model Specifications

The Model Family

Last updated

February 2026

Model Context Status Tier

AXIOM 2

200K tokens
Available
Latest

Our most capable and safest model

State-of-the-art performance on scientific reasoning, mathematics, and code — built with safety-first training from the ground up. Every capability advance is matched by rigorous safety evaluations.

Capabilities

Advanced scientific reasoning ✓
Complex mathematical proofs ✓
Production-grade code generation ✓
Nuanced long-form analysis ✓
52 language support ✓
200K context window ✓
Get access to AXIOM 2

AXIOM Research

1.0M tokens
Available
Research Preview

Frontier capabilities for research workloads

Designed for research teams requiring maximum capability on complex, multi-step reasoning tasks. Extended context, experimental features, and direct API access to our latest research models.

Capabilities

1M token context window ✓
Extended reasoning mode ✓
Research API access ✓
Custom fine-tuning support ✓
Priority compute allocation ✓
Academic pricing available ✓
Get access to AXIOM Research

AXIOM Instant

32K tokens
Available
Fast

Production speed for everyday tasks

Optimized for low-latency applications requiring fast, reliable responses. Built on our second-generation architecture with 5x the speed of AXIOM 2 at a fraction of the compute cost.

Capabilities

Sub-100ms response times ✓
Competitive reasoning ability ✓
High throughput API ✓
Cost-optimized architecture ✓
32K context window ✓
Simple integration ✓
Get access to AXIOM Instant

Developer API

Integrate in minutes.

Python, TypeScript, and REST. Full documentation, generous free tier, no rate limit surprises.

Get API key
example.py 
import axiom

client = axiom.Axiom(api_key="your-api-key")

response = client.messages.create(
    model="axiom-2-20260101",
    max_tokens=4096,
    messages=[{
        "role": "user",
        "content": "Explain the implications of constitutional AI."
    }]
)
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Ready to build with frontier AI?

Access AXIOM 2 through our API. Production-grade safety, world-class capabilities, transparent pricing.