Atlas / Anthropic / Claude Sonnet 4

Claude Sonnet 4

Balanced Claude model offering solid performance at a moderate price point.

Active Tools Vision

Current pricing

Input

$3.00

Output

$15.00

Cached input

$0.30

per 1M tokens Source ↗

Specifications

Context window

200K tokens

Max output

16K tokens

Knowledge cutoff

Feb 2025

Capabilities

✓ Function calling / Tools

✓ Image understanding

✗ Extended thinking / Reasoning

✗ Audio input/output

TierUnitInputCached inputOutputEffectiveSource

Standard Per 1M tokens $3.00 $0.30 $15.00 March 12, 2026 Source

Standard Per 1M tokens $3.00 $0.30 $15.00 March 11, 2026 Source

Standard Per 1M tokens $3.00 $0.30 $15.00 March 10, 2026 Source

Standard Per 1M tokens $3.00 $0.30 $15.00 March 9, 2026 Source

Standard Per 1M tokens $3.00 $0.30 $15.00 March 8, 2026 Source

Standard Per 1M tokens $3.00 $0.30 $15.00 March 7, 2026 Source

Standard Per 1M tokens $3.00 $0.30 $15.00 March 6, 2026 Source