vs
13:3
overall capability wins (1 ties across 17 scored). gpt-oss-120B leads overall.
- Reasoning5:1
- Coding6:0
- Arena1:0
- Tool use1:0
- Composite indices2:0
- Pricing3:0
- Speed0:2
- Specs0:2
Verdict
gpt-oss-120B leads coding (widest gap: +26.2 on Aider); gpt-oss-120B ranks higher on LMArena (+25 Elo); Llama 4 Maverick offers ~7.6x larger context (1M vs 131K).
- gpt-oss-120B leads coding (widest gap: +26.2 on Aider)
- gpt-oss-120B ranks higher on LMArena (+25 Elo)
- Llama 4 Maverick offers ~7.6x larger context (1M vs 131K)
- gpt-oss-120B is ~1.6x cheaper on a blended token basis than Llama 4 Maverick
Cost for 1M in + 250K out
Illustrative chat workload at primary-provider list prices.
- gpt-oss-120B
- $0.30
- Llama 4 Maverick
- $0.48
gpt-oss-120B is about 1.6x cheaper on this workload.
Price per 1M tokens
Full comparison
Organization
OpenAI
Meta
Family
gpt-oss
Llama / Muse
License
Apache 2.0
Llama 4 Community
Open weights
Yes
Yes
Release
Aug 5, 2025
Apr 5, 2025
Knowledge cutoff
-
-
API / provider
self-host / partners
Together / Fireworks (ref.)
Modalities
text → text
text, image → text
Specs
Context window
131K
1M
Max output
33K
33K
Parameters
117B
400B (17B act.)
Pricing
Input $/1M
$0.15
$0.27
Output $/1M
$0.60
$0.85
Blended $/1M (3∶1)
$0.26
$0.42
Speed
tok/s
70
95
TTFT (s)
0.4
0.35
Reasoning
MMLU-Pro
—
80.5
GPQA Diamond
78.2
67.1
Humanity's Last Exam
19.6
4.9
AIME 2025
92.5
19.3
MATH-500
—
88.9
Humanity's Last Exam (with tools)
—
—
AA-Omniscience Accuracy
21.8
24.9
AA-LCR v1.1
52.0
50.0
CritPt
1.1
—
MMMU-Pro
—
62.1
IFBench
69.0
43.0
Chartography
—
—
Chartography (With Tools)
—
—
Coding
SWE-bench Verified
26.0
21.0
SWE-bench Pro
16.2
5.2
SWE-bench Multilingual
—
—
LiveCodeBench
—
43.4
Terminal-Bench 2.1
26.2
7.9
Aider Polyglot
41.8
15.6
Terminal-Bench 3
—
—
BigCodeBench
—
49.7
SciCode
34.0
31.7
CursorBench
—
—
SWE-Rebench
27.3
11.0
NL2Repo-Bench
—
—
DeepSWE
—
—
WebDev Arena
—
—
Terminal-Bench 4.0
—
—
CursorBench 4.0
—
—
FrontierCode v1.1 (Main)
—
—
Arena
LMArena Elo
1,352
1,327
| Metric | gpt-oss-120B | Llama 4 Maverick | Delta |
|---|---|---|---|
| Identity | |||
| Organization | OpenAI | Meta | — |
| Family | gpt-oss | Llama / Muse | — |
| License | Apache 2.0 | Llama 4 Community | — |
| Open weights | Yes | Yes | — |
| Release | Aug 5, 2025 | Apr 5, 2025 | — |
| Knowledge cutoff | - | - | — |
| API / provider | self-host / partners | Together / Fireworks (ref.) | — |
| Modalities | text → text | text, image → text | — |
| Specs | |||
| Context window | 131K | 1M | B +869K |
| Max output | 33K | 33K | tie |
| Parameters | 117B | 400B (17B act.) | B +283 |
| Pricing | |||
| Input $/1M | $0.15 | $0.27 | A +$0.12 |
| Output $/1M | $0.60 | $0.85 | A +$0.25 |
| Blended $/1M (3∶1) | $0.26 | $0.42 | A +$0.15 |
| Speed | |||
| tok/s | 70 | 95 | B +25 |
| TTFT (s) | 0.4 | 0.35 | B +0.05 |
| Reasoning | |||
| MMLU-Pro | — | 80.5 | — |
| GPQA Diamond | 78.2 | 67.1 | A +11.1 pts |
| Humanity's Last Exam | 19.6 | 4.9 | A +14.7 pts |
| AIME 2025 | 92.5 | 19.3 | A +73.2 pts |
| MATH-500 | — | 88.9 | — |
| Humanity's Last Exam (with tools) | — | — | — |
| AA-Omniscience Accuracy | 21.8 | 24.9 | B +3.1 pts |
| AA-LCR v1.1 | 52.0 | 50.0 | A +2.0 pts |
| CritPt | 1.1 | — | — |
| MMMU-Pro | — | 62.1 | — |
| IFBench | 69.0 | 43.0 | A +26.0 pts |
| Chartography | — | — | — |
| Chartography (With Tools) | — | — | — |
| Coding | |||
| SWE-bench Verified | 26.0 | 21.0 | A +5.0 pts |
| SWE-bench Pro | 16.2 | 5.2 | A +11.0 pts |
| SWE-bench Multilingual | — | — | — |
| LiveCodeBench | — | 43.4 | — |
| Terminal-Bench 2.1 | 26.2 | 7.9 | A +18.3 pts |
| Aider Polyglot | 41.8 | 15.6 | A +26.2 pts |
| Terminal-Bench 3 | — | — | — |
| BigCodeBench | — | 49.7 | — |
| SciCode | 34.0 | 31.7 | A +2.3 pts |
| CursorBench | — | — | — |
| SWE-Rebench | 27.3 | 11.0 | A +16.3 pts |
| NL2Repo-Bench | — | — | — |
| DeepSWE | — | — | — |
| WebDev Arena | — | — | — |
| Terminal-Bench 4.0 | — | — | — |
| CursorBench 4.0 | — | — | — |
| FrontierCode v1.1 (Main) | — | — | — |
| Arena | |||
| LMArena Elo | 1,352 | 1,327 | A +25 Elo |
gpt-oss-120B
- Context
- 131K / 33K out
- Parameters
- 117B
- Price
- $0.15 / $0.60
- Speed
- 70 tok/s · 0.4s TTFT
- Modalities
- text → text
- License
- Apache 2.0
OpenAI's open-weight 120B release under Apache 2.0 for self-hosted frontier-adjacent chat.
Llama 4 Maverick
- Context
- 1M / 33K out
- Parameters
- 400B (17B act.)
- Price
- $0.27 / $0.85
- Speed
- 95 tok/s · 0.35s TTFT
- Modalities
- text, image → text
- License
- Llama 4 Community
Meta's open multimodal MoE flagship - 400B total / 17B active with 1M context.
Benchmark charts
Winner bars are emphasized. Per-benchmark deltas sit above each chart.