Claude Opus 4.8
Anthropic · released 2026 · proprietary API
- 1M context
- Text + image in
Most capable Opus-tier model for complex reasoning + long-horizon agentic coding.
Context window
1M
1,000,000 tokens
Input price
$5
per 1M tokens
Output price
$25
per 1M tokens
Blended
$10
3:1 in:out mix
Weights
Proprietary
API only
Released
2026
Anthropic
Where it ranks
Of 19 models tracked.
Cost to run
#16
of 19
Input price
#16(tied)
of 19
Context window
#5(tied)
of 19
Compare with
The nearest models by blended cost to run.
Put it to work
Specs from BitByteCore's hand-verified Frontier Ledger (v2026-07-20), this row verified 20 Jul 2026 against Anthropic's official pricing ↗. Model pricing moves fast — confirm with Anthropic before you rely on a figure.