Anthropic
AI safety company building the Claude family of models. Founded in 2021 by former OpenAI researchers. AI Release Tracker has logged 24 Anthropic models, from Claude 1 (Mar 14 2023) through Claude Opus 5 (Jul 24 2026). Every release below links to a dedicated page with benchmarks, parameters, and context window.
A new Anthropic model typically arrives about every 24 days, with the next projected around Aug 17, 2026. Its strongest benchmark results to date include BullshitBench v2 (95%, on Claude Opus 4.8), GPQA Diamond (94.2%, on Claude Opus 4.7), and Arena Elo (Code) (1673, on Claude Opus 5). These models are proprietary, available through Anthropic's API and products.
Release cadence
Expected next releaseIn 12 days
Aug 17, 2026
Days since last releaseTypically every 24 days
12
Recent intervals
24 Jul 2026 · Claude Opus 5
24
30 Jun 2026 · Claude Sonnet 5
21
9 Jun 2026 · Claude Fable 5
12
28 May 2026 · Claude Opus 4.8
42
16 Apr 2026 · Claude Opus 4.7
58
Best benchmark scores
BullshitBench v2
Claude Opus 4.8
95%
#1Best published BS-Bench score of all tracked models
GPQA Diamond
Claude Opus 4.7
94.2%
#3 of 46Best: GPT-5.4-Pro · 94.4%
Arena Elo (Code)
Claude Opus 5
1673
#2 of 43Best: Kimi K3 · 1679
SWE-Bench Verified
Claude Fable 5
95.5%
#1Best published SWE-Ver score of all tracked models
Next.js Evals
Claude Fable 5
92%
#1Best published Next.js score of all tracked models
Terminal-Bench 2.1
Claude Fable 5
88%
#3 of 20Best: GPT-5.6 Sol · 88.8%
All releases
24 releases · Mar 14 2023 – Jul 24 20262026
7 releases2025
7 releases2024
6 releasesAnthropic — frequently asked questions
- What is the latest Anthropic AI model?
- The most recent Anthropic model tracked on AI Release Tracker is Claude Opus 5, released on Jul 24 2026.
- How many AI models has Anthropic released?
- AI Release Tracker tracks 24 Anthropic model releases, from Claude 1 on Mar 14 2023 through Claude Opus 5 on Jul 24 2026.
- What models has Anthropic released?
- Anthropic's tracked releases, newest first: Claude Opus 5 (Jul 24 2026), Claude Sonnet 5 (Jun 30 2026), Claude Fable 5 (Jun 9 2026), Claude Opus 4.8 (May 28 2026), Claude Opus 4.7 (Apr 16 2026), Claude Sonnet 4.6 (Feb 17 2026), Claude Opus 4.6 (Feb 5 2026), Claude Opus 4.5 (Nov 24 2025), Claude Haiku 4.5 (Oct 15 2025), Claude Sonnet 4.5 (Sep 29 2025), Claude Opus 4.1 (Aug 5 2025), Claude Sonnet 4 (May 22 2025), Claude Opus 4 (May 22 2025), Claude 3.7 Sonnet (Feb 24 2025), Claude 3.5 Haiku (Oct 22 2024), Claude 3.5 Sonnet (upgraded) (Oct 22 2024), Claude 3.5 Sonnet (Jun 20 2024), Claude 3 Haiku (Mar 4 2024), Claude 3 Sonnet (Mar 4 2024), Claude 3 Opus (Mar 4 2024), Claude 2.1 (Nov 21 2023), Claude Instant 1.2 (Aug 9 2023), Claude 2 (Jul 11 2023), Claude 1 (Mar 14 2023).
- Which benchmarks does Anthropic lead?
- Among all models tracked here, Anthropic holds the best score on BullshitBench v2 (Claude Opus 4.8, 95%), Gray Swan IPI (k = 1) (Claude Opus 5, 0.2%), Gray Swan IPI (k = 10) (Claude Opus 5, 1.6%), Gray Swan IPI (k = 15) (Claude Opus 5, 2%), SWE-Bench Pro (Claude Fable 5, 80.3%), SWE-Bench Verified (Claude Fable 5, 95.5%), SWE-Bench Multilingual (Claude Opus 4.8, 84.4%), CursorBench v3.2 (Claude Fable 5, 70.5%), CursorBench v3.1 (Claude Fable 5, 72.9%), FrontierCode v1.1 (Main) (Claude Opus 5, 53.4%), Frontier-Bench v0.1 (Claude Opus 5, 43.3%), BU Bench (Claude Opus 4.8, 74%), Humanity's Last Exam (no tools) (Claude Opus 5, 56.3%), Humanity's Last Exam (with tools) (Claude Opus 5, 64.7%), ARC-AGI-3 (Claude Opus 5, 30.2%), BioMysteryBench (hard) (Claude Opus 5, 49.4%), BioMysteryBench (human solved) (Claude Opus 5, 90.1%), OSWorld 2.0 (Claude Opus 5, 70.6%), AutomationBench (Claude Opus 5, 26%), Harvey's Legal Agent Benchmark (Held-out) (Claude Opus 5, 11.7%), HealthBench Professional (Claude Opus 5, 59.8%), GDPval-AA (Claude Fable 5, 1932), GDPval-AA v2 (Claude Opus 5, 1861) and Arena Elo (Text) (Claude Fable 5, 1509).
- Does Anthropic release open models?
- No. All 24 tracked Anthropic releases are proprietary — available through Anthropic's own API or products rather than as downloadable weights.
- How often does Anthropic release new models?
- Across its 24 tracked releases, Anthropic has shipped a new model roughly every 53 days on average — about 6.9 releases per year.