Granite 4.1 8B vs gpt-oss-120b

Granite 4.1 8B at $0.058 in and $0.115 out and gpt-oss-120b at $0.043 in and $0.196 out — per million tokens, from the same wallet.

Granite 4.1 8B

Ibm Granite

0.04¢

for a client proposal

$0.058 in · $0.115 out / 1M

131K context · released 3 months ago

Full page →

gpt-oss-120b

OpenAI

0.04¢

for a client proposal

$0.043 in · $0.196 out / 1M

131K context · released August 2025

Full page →

Asking all both at once — identical prompt, identical context — costs about 0.07¢ for a typical client proposal.

At a glance

Cheapest input: gpt-oss-120b at $0.043 per million tokens.
Cheapest output: Granite 4.1 8B at $0.115 per million tokens.
Identical context windows: 131K tokens each.

Cost per task

Estimated totals at the rates above. Solid bar is input, lighter bar is output.

Quick code fix

2K in · 500 out

Granite 4.1 8B

0.02¢

gpt-oss-120b

0.02¢

Draft a client proposal from notes

5K in · 800 out

Granite 4.1 8B

0.04¢

gpt-oss-120b

0.04¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Granite 4.1 8B

needs 155K ctx

gpt-oss-120b

needs 155K ctx

Analyze a 50-page legal contract

35K in · 1K out

Granite 4.1 8B

0.21¢

gpt-oss-120b

0.17¢

Large architecture refactor

250K in · 3K out

Granite 4.1 8B

needs 250K ctx

gpt-oss-120b

needs 250K ctx

Solid part of each bar is input tokens, the lighter part is output. Models that don’t fit a task are marked instead of priced.

Cost vs Token Amount

Drag the slider to adjust the split between input and output workload.

80% Input20% Output

Granite 4.1 8B

gpt-oss-120b

Adjust the ratio slider to change how output tokens influence the final price for equivalent workloads.

Pricing

Granite 4.1 8B

gpt-oss-120b

Input / 1M tokens

$0.058

$0.043

Output / 1M tokens

$0.115

$0.196

Cached input / 1M

$0.058

—

Specs

Granite 4.1 8B

gpt-oss-120b

Provider

Ibm Granite

OpenAI

Released

3 months ago

August 2025

Context window

131K

Max output

131K

Input

Text

Output

Text

Reasoning

Answers directly

Shows its thinking

Knowledge cutoff

—

2024-06-30

Try it with real numbers

2K tokens in · 500 tokens out.

Granite 4.1 8B

Ibm Granite

0.02¢

for this task

67% input · 33% output

Full pricing →

gpt-oss-120b

OpenAI

0.02¢

for this task

47% input · 53% output

Full pricing →

All 2, same prompt and context: 0.04¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 14,070 of these.

Which should you pick?

On price, gpt-oss-120b is the cheapest of the two on a typical task, at about 0.04¢.

If you want to watch the model think, gpt-oss-120b shows reasoning; the other answers directly.

Or don’t pick. Send the identical prompt to all both, read the answers side by side, and keep the winner. How to run a fair bake-off →

Granite 4.1 8B pricing →gpt-oss-120b pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Granite 4.1 8B or gpt-oss-120b?

On a typical client proposal (5K tokens in, 800 out): gpt-oss-120b at 0.04¢; Granite 4.1 8B at 0.04¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

They are identical — 131K tokens each, about 190 pages.

Can I run Granite 4.1 8B and gpt-oss-120b side by side on Alyph?

Yes — that is what Alyph is built for: the identical prompt with identical context to all 2, answers rendered side by side, billed from one wallet. This exact combination costs about 0.07¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 0.07¢ for a typical client proposal. Free to start, with $5 of credit.