Smaller o-series reasoner for economical coding, math, and planning tasks
Specification
openai listing
Context
200K
Max output
100K
Released
2024-12-20
Knowledge cutoff
2024-05
Retires
2026-10-23
Open weights
no
Input
text
Output
text
Price
US dollars per million tokens · openai list price
Input
$1.10
Output
$4.40
Cache read
$0.55
Cache write
free
Batch and priority prices
US dollars per million tokens · per listing
| Price | Listing | $/M |
|---|---|---|
| Batch input | azure | $0.605 |
| Batch input | openai | $0.55 |
| Batch output | azure | $2.42 |
| Batch output | openai | $2.20 |
Batch input is 45% below the interactive input price at the same listing.
Quality
12 benchmarks · 3 sources
Composite
42nd
percentile of 334 scored models
Rank
193 / 334
±0.05 sd
Evidence
12 × 3
3 or more benchmarks, from 2 or more sources
Effort range
6.6
points between effort settings
coding36th2/3 bench
reasoning46th3/4 bench
math43rd6/7 bench
knowledge11th1/1 bench
By reasoning effort
every setting placed on the same scale as the leaderboard
| Setting | Composite | Benchmarks behind it |
|---|---|---|
| high | 82nd | 1 |
| medium | 71st | 1 |
Every score
one row per source and configuration — nothing averaged away
| Benchmark | Score | Configuration | Source | Run |
|---|---|---|---|---|
| MATH level 5 | 95.8 ±0.4 | default · 2 runs | Epoch AI | 2025-02-13 |
| Aider polyglot | 60.4 | high · aider diff | Aider | 2025-01-31 |
| ↳ | 53.8 | medium · aider diff | Aider | 2025-01-31 |
| Settings differ by 6.6 points on this benchmark. | ||||
| GPQA diamond | 73.2 ±3.3 | default · 3 runs | Epoch AI | 2026-07-20 |
| OTIS Mock AIME 2024-2025 | 61.8 ±7.5 | default · 3 runs | Epoch AI | 2026-07-20 |
| FrontierMath-v1 | 17.9 ±1.9 | default · 4 runs | Epoch AI | 2025-11-16 |
| Chess Puzzles | 10.7 ±2.9 | default · 3 runs | Epoch AI | 2026-08-07 |
| FrontierMath-Tier-4-2025-07-01 | 2.1 ±2.9 | default · 2 runs | Epoch AI | 2025-07-01 |
| SWE-Bench verified | 42.4 | default · Agentless Lite | SWE-bench | — |
| Mystery Game Puzzles | 7.0 ±2.6 | default | Epoch AI | 2026-08-27 |
| FrontierMath-Tier-4-v2 | 0.0 ±0.0 | default | Epoch AI | 2026-06-11 |
| FrontierMath-Tiers-1-3-v2 | 11.0 ±1.8 | default · 3 runs | Epoch AI | 2026-08-27 |
| SimpleQA Verified | 15.3 ±1.1 | default | Epoch AI | 2026-08-31 |
The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.
Available from 20 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| openaivendor | $1.10 | $4.40 | $0.55 | — | 200K | 100K | 2026-10-23 |
| poe | $0.99 | $4.00 | — | — | 200K | 100K | — |
| abacus | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| azure | $1.10 $1.21 $1.513 | $4.40 $4.84 $6.05 | $0.55 $0.605 $0.757 | — | 200K | 100K | 2026-11-19 |
| azure-cognitive-services | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| cloudflare-ai-gateway | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| edenai | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| helicone | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| impossibl | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| jiekou | $1.10 | $4.40 | — | — | 131K | 131K | — |
| kilo | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| llmgateway | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| llmgateway-providers | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| merge-gateway | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| nano-gpt | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| nearai | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| openrouter | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| vercel | $1.10 | $4.40 | $0.55 | — | 200K | 100K | — |
| vercel_ai_gateway · vercel-ai-gateway | $1.10 | $4.40 | $0.55 | free | 200K | 100K | — |
| anyapi | — | — | — | — | 200K | 100K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-02 | azure | Cache read | $0.55 |
| 2026-09-04 | azure | Cache read | $0.55 |
| 2026-09-02 | openrouter | Cache read | $0.55 |
| 2026-09-06 | openrouter | Cache read | $0.55 |
| 2026-09-02 | azure | Input | $1.10 |
| 2026-09-04 | azure | Input | $1.10 |
| 2026-09-02 | azure | Output | $4.40 |
| 2026-09-04 | azure | Output | $4.40 |
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