Olmo 3.1 32B Instruct vs GPT-5

Benchmark Performance

Available Benchmarks

BenchmarkOlmo-3.1-32B-InstructGPT-5
LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · leader1,311.9093% of row best · rating · olmo-3.1-32b-instruct; 95% CI [1305.73447366, 1318.07100374]; votes 11463; rank 2231,405.96100% of row best · rating · gpt-5-high; 95% CI [1401.51371519, 1410.40173213]; votes 31418; rank 132
Overall ResultCounted from the protocol-matched rows above0 benchmark wins1 benchmark winOverall lead

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

FieldAt a Glance
Ai2 · activeOlmo 3.1 32B InstructVerified Aug 28, 2026
OpenAI · activeGPT-5Verified Sep 3, 2026

Technical Differences

Side-by-Side Facts

Indexable
FieldOlmo-3.1-32B-InstructGPT-5
DeveloperAi2OpenAI
FamilyOlmo 3 1 32b InstructGpt 5
ModelOlmo-3.1-32B-InstructGPT-5
VersionOlmo-3.1-32B-InstructGPT-5
Lifecycleactiveactive
ReleasedUnknown2025-08-07
Knowledge cutoffUnknown2024-09-30
Input modalitiesTextText, Image
Output modalitiesTextText
Context window66K400K
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

11 comparable fields · 9 material differences · Pair passes the primary-source comparison gate

Olmo 3.1 32B Instruct Capabilities

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

GPT-5 Capabilities

chatgenerationreasoningstructured outputstools
Input price$0.625
Output price$5.00
Serving providers2
Canonical IDopenai/gpt-5

Internal Comparison Graph

Related Comparisons

All text comparisons →
APairBContext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext
vscross-developer peerstext

Primary Evidence

Sources and Freshness

Questions

Olmo 3.1 32B Instruct vs GPT-5 FAQs

Is Olmo 3.1 32B Instruct or GPT-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, 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?+

Only GPT-5 has a directly sourced input price: $0.625 per million tokens. Only GPT-5 has a directly sourced output price: $5.00 per million tokens.

Which has a larger context window, Olmo 3.1 32B Instruct or GPT-5?+

GPT-5 has the larger sourced context window. Olmo 3.1 32B Instruct supports 66K and GPT-5 supports 400K.

Which performs better in benchmarks, Olmo 3.1 32B Instruct or GPT-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 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 is not marked open weight.

Can Olmo 3.1 32B Instruct and GPT-5 understand images?+

Olmo 3.1 32B Instruct is not documented with image input; GPT-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?+

GPT-5 has the larger sourced maximum output: Olmo 3.1 32B Instruct supports 33K and GPT-5 supports 128K output tokens.

Do Olmo 3.1 32B Instruct and GPT-5 support reasoning and tool use?+

Olmo 3.1 32B Instruct: tool calling. GPT-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?+

Olmo 3.1 32B Instruct has 0 sourced provider routes; GPT-5 has 2, so GPT-5 has broader tracked availability.

Which offers better value, Olmo 3.1 32B Instruct or GPT-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.

Send Feedback