Model Tracker
Claude Sonnet 5
Claude Sonnet 5 is an AI model made by Anthropic. Anthropic released it on 30 June 2026. It is generally available. It takes text, image and returns text.
In inglese
Claude Sonnet 5 is an AI model made by Anthropic. Anthropic released it on 30 June 2026. It is generally available. It takes text, image and returns text. Its context window is 1,000,000 tokens. Its longest answer is 128,000 tokens. Through the API it costs $2.00 per 1M tokens for input and $10.00 per 1M tokens for output. Its knowledge cutoff is January 2026.
- Released
- 30 June 2026 — platform.claude.com, read 16 October 2026
- Status
- Generally available — platform.claude.com, read 16 October 2026
- Takes
- Text, Image — platform.claude.com, read 16 October 2026
- Returns
- Text — platform.claude.com, read 16 October 2026
- Open weights
- Not confirmed: The maker's pages reviewed do not state whether the model's weights are open.
- Licence
- Not confirmed: The maker's pages reviewed do not publish a licence for the model's weights.
- Context window
- 1,000,000 tokens — platform.claude.com, read 16 October 2026
- Longest answer
- 128,000 tokens — platform.claude.com, read 16 October 2026
- Knowledge cutoff
- January 2026 — platform.claude.com, read 16 October 2026
- API price, input
- $2.00 per 1M tokens — platform.claude.com, read 16 October 2026
- API price, output
- $10.00 per 1M tokens — platform.claude.com, read 16 October 2026
- Where
- API, Consumer app, Cloud marketplaces — www.anthropic.com, read 16 October 2026
- Parameters
- Not confirmed: The maker's pages reviewed do not publish the model's parameter count.
- Model card
- https://www.anthropic.com/claude-sonnet-5-system-card — platform.claude.com, read 16 October 2026
Benchmarks
Measured by others, not by the maker: each score with the name the measurer gives the model and the setting it ran, its day and its licence.
Arena
- Text Arena, claude-sonnet-5-high: 1,461 (1,457–1,465, 49,595 votes), published 15 October 2026
- Code Arena (WebDev), Claude Sonnet 5 (High): 1,541 (1,535–1,547, 15,665 votes), published 18 October 2026
- Vision Arena, claude-sonnet-5-high: 1,263 (1,256–1,270, 13,503 votes), published 9 October 2026
Arena’s leaderboard dataset (lmarena-ai/leaderboard-dataset on Hugging Face), CC BY 4.0: ratings from people’s votes between two anonymous models, as Arena publishes them. Data · CC BY 4.0
Epoch AI
- Epoch Capabilities Index, Claude Sonnet 5: 156.4 (154.0–158.9), as of 19 October 2026
- GPQA Diamond, claude-sonnet-5_xhigh: 90.5% (± 1.8), run 1 July 2026
- GPQA Diamond, claude-sonnet-5_max: 80.3% (± 2.8), run 6 August 2026
- FrontierMath, tiers 1–3, claude-sonnet-5_max: 65.6% (± 2.8), run 30 June 2026
- FrontierMath, tier 4, claude-sonnet-5_max: 29.3% (± 7.2), run 30 June 2026
- OTIS Mock AIME 2024–2025, claude-sonnet-5_xhigh: 94.7% (± 2.3), run 1 July 2026
- OTIS Mock AIME 2024–2025, claude-sonnet-5_max: 80.0% (± 6.0), run 6 August 2026
- SimpleQA Verified, claude-sonnet-5_max: 33.7% (± 1.5), run 27 August 2026
- SimpleQA Verified, claude-sonnet-5_xhigh: 32.9% (± 1.5), run 27 August 2026
Epoch AI, ‘Capabilities & benchmarking’, epoch.ai/benchmarks, CC BY 4.0: Epoch AI’s own runs and its Capabilities Index. Data · CC BY 4.0
Questions
When was Claude Sonnet 5 released?
Anthropic released Claude Sonnet 5 on 30 June 2026.
Is Claude Sonnet 5 still available?
Yes: it is generally available, as Anthropic states it.
What is the context window of Claude Sonnet 5?
The context window of Claude Sonnet 5 is 1,000,000 tokens, as Anthropic prints it.
How much does the Claude Sonnet 5 API cost?
On the standard tier, Claude Sonnet 5 costs $2.00 per 1M tokens for input and $10.00 per 1M tokens for output, as Anthropic lists it.
What does Claude Sonnet 5 take and return?
Claude Sonnet 5 takes text, image and returns text.
What is the knowledge cutoff of Claude Sonnet 5?
The knowledge cutoff of Claude Sonnet 5 is January 2026.
More from Anthropic
- Claude 1.0
- Claude 1.1
- Claude 1.2
- Claude 1.3
- Claude 2
- Claude 2.1
- Claude 3 Haiku
- Claude 3 Opus
- Claude 3 Sonnet
- Claude 3.5 Haiku
- Claude Fable 5
- Claude Fable 5.1
- Claude Haiku 4.5
- Claude Haiku 5.5
- Claude Instant 1.0
- Claude Instant 1.1
- Claude Instant 1.2
- Claude Mythos Preview
- Claude Opus 4.1
- Claude Opus 4.5
- Claude Opus 4.6
- Claude Opus 4.7
- Claude Opus 4.8
- Claude Opus 5
Sources
- Introducing Claude Sonnet 5 (read 16 October 2026)
- Claude Sonnet 5 - Claude Platform Docs (read 16 October 2026)
- Model deprecations - Claude Platform Docs (read 16 October 2026)
- Pricing - Claude Platform Docs (read 16 October 2026)
- Anthropic’s Transparency Hub (read 16 October 2026)
- Claude Sonnet 5 System Card (read 16 October 2026)