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Claude Haiku 3

Tool callingImage inputFile input
Model cardLaunch postWebsite
Claude Haiku 3 launch post cover

Legacy model retained for compatibility with older integrations

Context
200K
Released
2y ago

Sources:models.dev

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Other sourced evaluations appear below; missing scores are not zero.

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

Other published benchmarks

EvaluationReported score and source
GPQA diamond
36.3%
Epoch AI · claude-3-haiku-20240307
Epoch AI evaluation
OTIS Mock AIME 2024-2025
1.8%
Epoch AI · claude-3-haiku-20240307
Epoch AI evaluation

Benchmark compilation: Epoch AI, Capabilities & benchmarking (CC BY attribution). Scores are converted to percentages and model names matched to the Vertical Tabs catalog. Individual evaluations are credited to their original sources. External results may carry separate licences and evaluation configurations; do not interpret scores from different harnesses as directly comparable.

Specifications

Developer
Anthropic
Model family
Claude
Type
Language model
Predecessor
—
Successor
—
Released
March 13, 2024
Model ID
anthropic/claude-3-haiku-20240307
Openness
Closed
License
—
Input modalities
text, image, file
Output modalities
text
Modality
text+image+file->text
Max output tokens
4K
Knowledge cutoff
2023-08-31
Hugging Face
—
Source freshness
Metadata synced Oct 8, 2026, 10:17 PM UTC
Additional source evidence
Source model
anthropic/claude-3-haiku-20240307
Source family
claude-haiku
Last updated
2024-03-13
Knowledge cutoff
2023-08-31
Model context
200K
Model output limit
4K
Open weights
No
File attachments
Yes
Reasoning
No
Tool calling
Yes
Temperature control
Yes
Complete source record (JSON)
{
  "id": "anthropic/claude-3-haiku-20240307",
  "name": "Claude Haiku 3",
  "description": "Legacy model retained for compatibility with older integrations",
  "family": "claude-haiku",
  "last_updated": "2024-03-13",
  "knowledge": "2023-08-31",
  "attachment": true,
  "reasoning": false,
  "tool_call": true,
  "temperature": true,
  "modalities": {
    "input": [
      "text",
      "image",
      "pdf"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 200000,
    "output": 4096
  },
  "release_date": "2024-03-13",
  "open_weights": false
}

Infrastructure

Provider availability

All providers
Provider endpoint data will appear after this model's first OpenRouter endpoint sync.

Text provenance

Transitioning

Claude text watermarking

Anthropic says Claude models launched before August 2, 2026 have a transition period and are being moved to the same watermarking system over time.

Official explanation