Coding · EleutherAI

GPT-NeoX Instruct on SWE-bench Verified: score, rank and what it means

GPT-NeoX Instruct scores 50.5 on SWE-bench Verified, placing it #418 of 600 models in the index. The benchmark average is 57.5 and the leader is GPT-5.2 Pro at 81.7.

Score
50.5
0–100 scale
Rank
#418
of 600
Percentile
30th
within the index
Benchmark avg
57.5
all models
Leader
81.7
GPT-5.2 Pro
Gap to leader
31.2
points

Score distribution

The chart shows the top 10 models on SWE-bench Verified, with GPT-NeoX Instruct highlighted. Longer bars mean higher scores.

GPT-5.2 Pro 81.7
Claude Opus 4.5 Pro 81.1
GPT-5.2 Max 80.5
Claude Sonnet 4.5 Max 80.2
GPT-5.2 80.2
GPT-5.1 Pro 80.1
o4 Max 79.8
Claude Sonnet 4.5 Reasoning 79.6
Claude Opus 4.5 Max 79.5
Claude Opus 4.5 Reasoning 79.5

Top 10 leaderboard

#ModelProviderContextInput / 1MAvg score
1 GPT-5.2 Pro OpenAI 2000000 $21.32 89.6
2 Claude Opus 4.5 Pro Anthropic 200000 $20.98 89.1
3 GPT-5.2 Max OpenAI 1000000 $21.39 89.2
4 Claude Sonnet 4.5 Max Anthropic 1000000 $19.90 87.2
5 GPT-5.2 OpenAI 2000000 $19.71 88.0
6 GPT-5.1 Pro OpenAI 200000 $19.77 87.8
7 o4 Max OpenAI 2000000 $19.51 86.2
8 Claude Sonnet 4.5 Reasoning Anthropic 400000 $19.48 87.7
9 Claude Opus 4.5 Max Anthropic 1000000 $20.90 87.8
10 Claude Opus 4.5 Reasoning Anthropic 2000000 $20.91 88.2

What this score means

On SWE-bench Verified, GPT-NeoX Instruct sits at #418 of 600. The leader, GPT-5.2 Pro, scores 81.7, so the gap to the top is 31.2 points. The median model in this index scores 61.0, which puts GPT-NeoX Instruct below the midpoint.

EleutherAI models average 37.2 on this benchmark. GPT-NeoX Instruct is 13.3 points above that provider line, so it is a stronger result than the average EleutherAI model.

Among open-weight models, the average is 55.5. GPT-NeoX Instruct is 5.0 points below that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.

Read a 50.5 as a relative signal, not an absolute guarantee. Benchmark scores depend on prompt format, evaluation harness and contamination controls. Use this page to narrow the shortlist, then test the model on your own data.

Price context

At $1.52 per million input tokens, GPT-NeoX Instruct is below the median input price of $4.00 across the 600 models scored on SWE-bench Verified. The models immediately around it in the ranking are shown below so you can compare score and price together.

ModelProviderContextInput / 1MAvg score
Kimi K2 8B Moonshot AI 8192 $1.86 64.7
Embed 4 Turbo Cohere 4096 $5.13 64.0
Reka Flash Mini Reka AI 16384 $5.77 65.5
SmolLM3 Instruct Hugging Face 8192 $1.69 63.6
GPT-NeoX Instruct EleutherAI 16384 $1.52 62.6
Zephyr Hugging Face 8192 $1.61 62.8
Molmo Base Allen Institute for AI 4096 $2.02 65.0

Other benchmarks for GPT-NeoX Instruct

BenchmarkScoreRankPercentileRelative
MMLU-Pro 67.9 420 30th
GPQA Diamond 58.5 420 30th
HumanEval 63.7 452 25th
MATH-500 64.9 419 30th
AIME 2025 54.1 423 30th
LiveCodeBench 53.9 412 31th
IFEval 71.2 439 27th
TruthfulQA 66.0 444 26th
HellaSwag 75.4 435 28th
MMMU 62.5 404 33th
Arena Elo 1292.6 429 29th

FAQ

What score does GPT-NeoX Instruct get on SWE-bench Verified?

GPT-NeoX Instruct scores 50.5 on SWE-bench Verified in this index. The benchmark average is 57.5 and the top score is 81.7.

How does GPT-NeoX Instruct rank on SWE-bench Verified?

It ranks #418 of 600 models, in the 30th percentile. The leader is GPT-5.2 Pro at 81.7.

Is GPT-NeoX Instruct good at SWE-bench Verified?

It is below the median for this benchmark, so test it carefully before relying on it for this capability. The result should be read alongside its price and context window.

How is the SWE-bench Verified score calculated?

SWE-bench Verified is a coding benchmark. Scores in this index are modelled estimates on a 0–100 scale (or Elo for Arena), derived from capability tier and benchmark difficulty. They are not official leaderboard results.

What does GPT-NeoX Instruct cost?

GPT-NeoX Instruct costs $1.52 per million input tokens and $5.60 per million output tokens.

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