Terminal-Bench 4.0
claude-code2.1.231
Reasoning effort max
Tested model identity
Opus 4.8anthropic/claude-opus-4-8Pass rate23.64%
95% CI 20.08%–27.2%
n = 330Checked
anthropicListed May 27, 2026
Anthropic: Claude Opus 4.8
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...
Context window1M
Max output128K
Provider endpoints14
Benchmark results0
Agent runs1
Measured performance
All leaderboards ↗Benchmark results
No published results in this index yet
Scores appear here when an evaluation matches this exact model.
Model + harness
All agent results ↗Agent runs
claude-code
Access & cost
14 quotesPrices across providers
Your token mix
USD · listed token ratesOpenRouter
Catalog quote- Input
- $5.00
- Output
- $25.00
- Cached input
- $0.50
- Input
- $5.00
- Output
- $25.00
Experiential
Standard list rate
- Input
- $5.00
- Output
- $25.00
Catalog list rate. Plan allowances and temporary discounts are separate.
- Input
- $5.00
- Output
- $25.00
- Cached input
- $0.50
Cache write $6.25/M tokens · 1h cache write $10/M tokens · Web search $0.01/search
- Input
- $5.00
- Output
- $25.00
- Cached input
- $0.50
Cache write $6.25/M tokens · 1h cache write $10/M tokens · Web search $0.01/search
- Input
- $5.00
- Output
- $25.00
- Cached input
- $0.50
Cache write $6.25/M tokens · 1h cache write $10/M tokens · Web search $0.01/search
- Input
- $5.00
- Output
- $25.00
- Cached input
- $0.50
Cache write $6.25/M tokens · 1h cache write $10/M tokens · Web search $0.01/search
- Input
- $5.00
- Output
- $25.00
- Cached input
- $0.50
Cache write $6.25/M tokens · 1h cache write $10/M tokens · Web search $0.01/search
- Input
- $5.50
- Output
- $27.50
- Cached input
- $0.55
Cache write $6.875/M tokens · 1h cache write $11/M tokens · Web search $0.01/search
- Input
- $5.50
- Output
- $27.50
- Cached input
- $0.55
Cache write $6.875/M tokens · 1h cache write $11/M tokens · Web search $0.01/search
- Input
- $5.50
- Output
- $27.50
- Cached input
- $0.55
Cache write $6.875/M tokens · 1h cache write $11/M tokens · Web search $0.01/search
- Input
- $5.50
- Output
- $27.50
- Cached input
- $0.55
Cache write $6.875/M tokens · 1h cache write $11/M tokens · Web search $0.01/search
- Input
- $5.50
- Output
- $27.50
- Cached input
- $0.55
Cache write $6.875/M tokens · 1h cache write $11/M tokens · Web search $0.01/search
- Input
- $10.00
- Output
- $50.00
- Cached input
- $1.00
Cache write $12.5/M tokens · 1h cache write $20/M tokens · Web search $0.01/search
Offers for this model
1 offerExperiential Labs · Discount
1.25% off · Experiential Pro model discounts
Paid Pro plan required, covering the first 2,000 credits of usage each month, then list price.
Checked Source ↗
Model specifications
- Developer
- anthropic
- Modality
- Language
- Context
- 1,000,000 tokens
- Maximum output
- 128,000 tokens
- Weights
- Not reported
- Provider listed
- May 27, 2026
- First discovered
- Oct 16, 2026
Exact identities
- openrouter
anthropic/claude-opus-4.8 - deepinfra
anthropic/claude-opus-4-8 - experiential
claude-opus-4.8
Sources
Updated Oct 18, 2026
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