AnthropicClaude 1.3
As of 6 Nov 2026, Claude 1.3 by Anthropic is not yet ranked on the BenchLeader Index, which needs at least five independent results across two categories. Released 18 Apr 2023.
Key facts (as of 6 Nov 2026)
- Claude 1.3 was released on 18 Apr 2023 (Anthropic).
In detail. Claude 1.3 is an Anthropic model, released 18 Apr 2023. It is not yet ranked: no independent benchmark results so far, only pricing and metadata.
- Blended price
- –
- Output speed
- –
- First answer
- –
- Context
- –
- Full answer
- –
- Cost per task
- –
- Tokens per task
- –
- Released
- 18 Apr 2023
Versions
Anthropic has shipped 6 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.
| Model | Released | Index | Rank |
|---|---|---|---|
| Claude 4.7low | 16 Apr 2026 | – | – |
| Claude 3.7 | 24 Feb 2025 | – | – |
| Claude 2.1 | 21 Nov 2023 | – | – |
| Claude 2.0 | 11 Jul 2023 | – | – |
| Claude 2 | 11 Jul 2023 | – | – |
| Claude 1.3this page | 18 Apr 2023 | – | – |
Benchmark results
See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.
Knowledge
| Benchmark | not stated | Source |
|---|---|---|
| MMLUnot in index | 77.0%#32 | Epoch AI Benchmarking Hub |
| TriviaQAnot in index | 86.7%#3 | Epoch AI Benchmarking Hub |
More from Anthropic
See also
Questions people ask
- Why does Claude 1.3 have no BenchLeader Index score?
- The index needs at least five independent results across at least two categories, and as of 6 Nov 2026 Claude 1.3 does not have them yet. Launch-post scores are never used, so it is ranked once independent publishers have measured it.
- When was Claude 1.3 released?
- Anthropic released Claude 1.3 on 18 Apr 2023.
Data as of 6 Nov 2026. Compare with another model.
Cite as: BenchLeader, “Claude 1.3: benchmarks, pricing, speed and rank”, data as of 6 Nov 2026, https://www.benchleader.com/models/claude-1-3.