Olmo 3.1 32B Instruct vs GPT-5.5

At a Glance

Compare
GPT-5.5OpenAI
Intelligence, Cost, and Efficiency
IntelligenceHigher is better · MM Intelligence v2.5UnrankedNot in the 46-model eligible cohort#7 of 4683.9 score · 3/3 sources · complete
CostLower is better · Published-token output estimateUnrankedNot in the 44-model eligible cohort#38 of 44$0.341 per LiveBench case
EfficiencyHigher is better · MM Efficiency v1.5UnrankedNot in the 38-model eligible cohort#18 of 3853.4 score · 3/3 sources · complete
Pricing and Limits
Input priceFrom · USD / 1M tokensNot reported$5.00Openai · Sep 3, 2026
Output priceFrom · USD / 1M tokensNot reported$30.00Openai · Sep 3, 2026
Context windowMaximum documented tokens66K1,050K
Model facts checkedAug 28, 2026View model evidence →Sep 3, 2026View model evidence →

Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →

Available Benchmarks

All benchmark results →
BenchmarkOlmo-3.1-32B-InstructGPT-5.5
LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · leader1,311.8390% of row best · rating · olmo-3.1-32b-instruct; 95% CI [1305.66595265, 1318.00150818]; votes 11452; rank 2271,465.59100% of row best · rating · gpt-5.5; 95% CI [1461.82849712, 1469.35015015]; votes 66317; rank 31
Overall ResultCounted from the protocol-matched rows above0 benchmark winsNo overall winner1 benchmark winNo overall winner

Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.

Side-by-Side Facts

FieldOlmo-3.1-32B-InstructGPT-5.5
DeveloperAi2OpenAI
FamilyOlmo 3 1 32b InstructGpt 5 5
ModelOlmo-3.1-32B-InstructGPT-5.5
VersionOlmo-3.1-32B-InstructGPT-5.5
Lifecycleactiveactive
ReleasedUnknown2026-04-23
Knowledge cutoffUnknown2025-12-01
Input modalitiesTextText, Image
Output modalitiesTextText
Context window66K1,050K
Total parameters32.2BUnknown
Active parametersUnknownUnknown
Licenseapache-2.0Unknown
Open weightsYesNo
API availableUnknownYes
Self-hostableYesNo
Provider accessUnknownOpenai (Standard), Openrouter (Standard)
Capabilitieschat, generation, toolschat, generation, reasoning, structured_outputs, tools

Olmo 3.1 32B Instruct Capabilities

chatgenerationtools
Serving providers0
Canonical IDallenai/Olmo-3.1-32B-Instruct

GPT-5.5 Capabilities

chatgenerationreasoningstructured outputstools
Serving providers2
Canonical IDopenai/gpt-5.5

Primary Evidence

Sources and Freshness

Questions

Olmo 3.1 32B Instruct vs GPT-5.5 FAQs

Is Olmo 3.1 32B Instruct or GPT-5.5 better for coding?+

This comparison does not currently contain a protocol-matched coding benchmark for both Olmo 3.1 32B Instruct and GPT-5.5, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Which is cheaper, Olmo 3.1 32B Instruct or GPT-5.5?+

Only GPT-5.5 has a directly sourced input price: $5.00 per million tokens. Only GPT-5.5 has a directly sourced output price: $30.00 per million tokens.

Which has a larger context window, Olmo 3.1 32B Instruct or GPT-5.5?+

GPT-5.5 has the larger sourced context window. Olmo 3.1 32B Instruct supports 66K and GPT-5.5 supports 1,050K.

Which performs better in benchmarks, Olmo 3.1 32B Instruct or GPT-5.5?+

There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.

Can Olmo 3.1 32B Instruct or GPT-5.5 be self-hosted?+

Olmo 3.1 32B Instruct is the only model in this pair currently marked as self-hostable. Olmo 3.1 32B Instruct is open weight; GPT-5.5 is not marked open weight.

Can Olmo 3.1 32B Instruct and GPT-5.5 understand images?+

Olmo 3.1 32B Instruct is not documented with image input; GPT-5.5 is documented with image input. This reflects supported input modalities, not vision quality.

Which can generate longer answers, Olmo 3.1 32B Instruct or GPT-5.5?+

GPT-5.5 has the larger sourced maximum output: Olmo 3.1 32B Instruct supports 33K and GPT-5.5 supports 128K output tokens.

Do Olmo 3.1 32B Instruct and GPT-5.5 support reasoning and tool use?+

Olmo 3.1 32B Instruct: tool calling. GPT-5.5: reasoning, tool calling, and image input. Feature support does not establish relative quality.

Which is available from more inference providers, Olmo 3.1 32B Instruct or GPT-5.5?+

Olmo 3.1 32B Instruct has 0 sourced provider routes; GPT-5.5 has 2, so GPT-5.5 has broader tracked availability.

Which offers better value, Olmo 3.1 32B Instruct or GPT-5.5?+

There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.

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