Anthropic: Claude Sonnet 5.5
frontieranthropic/claude-sonnet-5.5
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...
AA INDEX56.0
CONTEXT1000K
MODALITYtext+image+file->text
OPENNESSProprietary
ADDEDSep 2026
LAST PRICED2 min ago
Input
$2.00 /M
Output
$10.00 /M
Blended (40/60)
$6.80 /M
Cost / IQ
$4.8591 /M
Cost / IQ = Blended Price ÷ (AA Intelligence Score ÷ 40). Normalises price by model intelligence so you can compare value across tiers. Lower = better value per unit of intelligence. Not a transactional price.
24h0%
7d0%
Price History
30-day view, daily close
Low: $6.80/M
High: $6.80/M
Average: $6.80/M
Pricing Variants
Cached Input
$0.20/M
90% cheaper than standard
Cache write: $2.50/M
Batch (async)
$3.40/M
50% cheaper than standard
In: $1.00/M · Out: $5.00/M
Provider Comparison
5 providers · click a column to sort
| Provider | Input $/M | Output $/M | Blended $/M ↑ | vs Median |
|---|---|---|---|---|
| ↓Amazon Bedrock | $2.00 | $10.00 | $6.80 | median |
| Anthropic | $2.00 | $10.00 | $6.80 | median |
| Claude Platform on AWS | $2.00 | $10.00 | $6.80 | median |
| Azure | $2.20 | $11.00 | $7.48 | +10.0% |
| $2.20 | $11.00 | $7.48 | +10.0% |
Blended price = 40% input + 60% output. Median price shown in header is the reference price for this model.
Cost / IQ Comparison
Cost / IQ (quality-adjusted $/M)$4.8591/M
Cost per GPT-4-equivalent token. Lower = better value. Comparable across all models.
403.7% above SIT TPI
Value Ranking (by Cost / IQ)
Rank #19 of 35 frontier models
← YOU ARE HERE | Anthropic: Claude Sonnet 5.5
Data Sources
Source
Aggregator & direct provider data
5 sources · updated recently
API Access
# Get this model's current price
curl https://api.inferenceindexer.ai/v1/models/anthropic/claude-sonnet-5.5
# Response (truncated)
{ "model_id": "anthropic/claude-sonnet-5.5", "name": "Anthropic: Claude Sonnet 5.5", "blended_price_per_m": 6.8, "sit_adjusted_price": 4.859056 }