Author's Description
AFM-4.5B is a 4.5 billion parameter instruction-tuned language model developed by Arcee AI. The model was pretrained on approximately 8 trillion tokens, including 6.5 trillion tokens of general data and 1.5 trillion tokens with an emphasis on mathematical reasoning and code generation.
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
Arcee AI's AFM-4.5B is a 4.5 billion parameter instruction-tuned language model, pretrained on an extensive 8 trillion tokens with a focus on mathematical reasoning and code generation. The model consistently performs among the fastest models and offers highly competitive pricing across all evaluated benchmarks. It also demonstrates exceptional reliability with a 99% success rate, indicating minimal technical failures. In terms of performance across categories, AFM-4.5B exhibits a notable strength in General Knowledge, achieving 95.0% accuracy, placing it in the 43rd percentile. Its Hallucinations benchmark shows perfect accuracy at 0.0%, indicating a strong ability to acknowledge uncertainty. However, the model shows significant weaknesses in Instruction Following (22.7% accuracy, 27th percentile) and Reasoning (22.4% accuracy, 15th percentile), suggesting areas for improvement in complex multi-step tasks. Coding performance is moderate at 66.3% accuracy (29th percentile), despite its pretraining emphasis. Ethics performance is 91.0% (25th percentile), while Email Classification is 88.0% (13th percentile). The model's cost efficiency is generally good, with several benchmarks showing above-average cost percentiles.
Model Pricing
Current Pricing
Feature | Price (per 1M tokens) |
---|---|
Prompt | $0.1 |
Completion | $0.4 |
Price History
Available Endpoints
Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
---|---|---|---|---|
Together
|
Together | arcee-ai/afm-4.5b | 65K | $0.1 / 1M tokens | $0.4 / 1M tokens |
Benchmark Results
Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
---|
Other Models by arcee-ai
|
Released | Params | Context |
|
Speed | Ability | Cost |
---|---|---|---|---|---|---|---|
Arcee AI: Caller Large Unavailable | May 05, 2025 | — | 32K |
Text input
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|
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Image input
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|
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|
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Text input
Text output
|
★★★★★ | ★★★★ | $$$ |
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|
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|
★★★★ | ★★★★ | $$$ |