Model

CodeT5+ 16B

OPEN

Salesforce · CodeT5+ family · released May 13, 2023

Encoder-decoder code LLM family (220M-16B); InstructCodeT5+ 16B tuned variant hit open-source SOTA HumanEval pass@1 in 2023 (non-commercial license)

ReasoningCodingVisionFunction callingTool useAgentic

98.5

Elo · unrated

Parameters

16B

Active params

16B (dense)

Context

2K tokens

Architecture

Encoder-decoder (shallow encoder / deep decoder), initialized from CodeGen-350M-mono encoder + CodeGen-16B-mono decoder

License

BSD-3-Clause

Languages

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API price (in/out)

No hosted API

Modalities

text

Benchmark results

Bar shows position within the tracked field; marker = field best

HumanEvalCoding30.9%#152

best: Claude Opus 4.5 · 99.4%

Run it locally

VRAM @ Q4

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VRAM @ FP16

32 GB

Fits on (Q4)

Multi-node cluster required

Throughput data unavailable.

Quantizations

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CodeT5+ family

Elo progression across releases

Resources

API price weights · each benchmark row carries its own source badge (see methodology)