LLM Comparison

GPT-6 Luna vs Olmo 3.1 32B Instruct

Side-by-side specs, pricing & capabilities · Updated September 2026

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2/6 models

Same tier:

	GPT-6 Luna	Olmo 3.1 32B Instruct
Organization	OpenAI	AllenAI
OpenTools Score		18 44.2
Family	GPT-6	Olmo
Status	Current	Current
Release Date	Sep 2026	Jan 2026
Context Window	1.1M tokens	66K tokens
Input Price	$0.10/M tokens	$0.20/M tokens
Output Price	$0.50/M tokens	$0.60/M tokens
Pricing Notes	OpenAI standard API, USD per million tokens for prompts up to 272K input tokens: $0.10 input, $0.01 cached input, $0.125 cache writes, $0.50 output. Above 272K input tokens, the full request costs 2x input/cache and 1.5x output. Batch/Flex cost 50% of Standard; Fast costs 2x; regional processing adds 10% where available. Reasoning output tokens are charged at output rates.	—
Capabilities	textvisionreasoningcodingtool-uselong-contextcontext-caching	textcode
Training Cutoff	2026-05-18	—
Max Output	128K tokens	—
API Identifier	`gpt-6-luna`	`allenai/olmo-3.1-32b-instruct`
Benchmarks
Artificial Analysis Intelligence Index v4.3.2	37.2559686869738artificial-analysis	—
MMLU	—	80.9https://huggingface.co/allenai/Olmo-3.1-32B-Instruct
GPQA	—	48.6https://huggingface.co/allenai/Olmo-3.1-32B-Instruct
GPQA Diamond	—	53.9394artificial-analysis
	View GPT-6 Luna	View Olmo 3.1 32B Instruct

Cost Calculator

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Input tokens / month

Output tokens / month

Model	Input	Output	Total / mo	vs Best
GPT-6 LunaCheapest	$0.10	$0.25	$0.35	—
Olmo 3.1 32B Instruct	$0.20	$0.30	$0.50	+43%

OpenAI

GPT-6 Luna

GPT-6 Luna is OpenAI's efficient reasoning model for focused, high-volume tasks. It accepts text and images, produces text, supports a 1,050,000-token context window and 128,000 output tokens, and is available through the Responses and Chat Completions APIs under the exact gpt-6-luna identifier.

AllenAI

Olmo 3.1 32B Instruct

Olmo 3.1 32B Instruct is a large language model from AllenAI. Supports up to 65,536 token context window. Available from $0.20/M input tokens.