Balanced GPT-5.6 model for capable, cost-efficient everyday work
Specification
openai listing
Context
1.1M
Max output
128K
Released
2026-07-09
Knowledge cutoff
2026-02-16
Retires
2028-01-11
Open weights
no
Input
text, image, pdf
Output
text
Price
US dollars per million tokens · openai list price
Input
$2.00
Output
$12.00
Cache read
$0.20
Cache write
$2.50
Batch and priority prices
US dollars per million tokens · per listing
| Price | Listing | $/M |
|---|---|---|
| Batch input | openai | $1.00 |
| Batch output | openai | $6.00 |
| Priority input | azure | $4.00 |
| Priority input | azure | $4.40 |
| Priority output | azure | $24.00 |
| Priority output | azure | $26.40 |
Batch input is 50% below the interactive input price at the same listing.
Long-context price tiers
the rate above each context threshold
| Above | Price | $/M |
|---|---|---|
| 272K | Cache read | $0.40 |
| 272K | Cache write | $5.00 |
| 272K | Input | $4.00 |
| 272K | Output | $18.00 |
Quality
8 benchmarks · 2 sources
Composite
90th
percentile of 334 scored models
Rank
36 / 334
±0.08 sd
Evidence
8 × 2
3 or more benchmarks, from 2 or more sources
Effort range
17.9
points between effort settings
reasoning89th3/4 bench
math95th3/7 bench
knowledge52nd1/1 bench
general73rd1/1 bench
By reasoning effort
every setting placed on the same scale as the leaderboard
| Setting | Composite | Benchmarks behind it |
|---|---|---|
| max | 94th | 8 |
| low | 83rd | 4 |
| medium | 26th | 1 |
Every score
one row per source and configuration — nothing averaged away
| Benchmark | Score | Configuration | Source | Run |
|---|---|---|---|---|
| FrontierMath-Tiers-1-3-v2 | 86.0 ±2.1 | max | Epoch AI | 2026-07-09 |
| Chess Puzzles | 54.0 ±5.0 | max | Epoch AI | 2026-07-09 |
| ↳ | 22.0 ±4.2 | low | Epoch AI | 2026-08-07 |
| Settings differ by 32.0 points on this benchmark. | ||||
| FrontierMath-Tier-4-v2 | 70.7 ±7.2 | max | Epoch AI | 2026-07-09 |
| OTIS Mock AIME 2024-2025 | 99.7 ±0.3 | max | Epoch AI | 2026-07-09 |
| ↳ | 88.9 ±4.7 | low | Epoch AI | 2026-08-07 |
| Settings differ by 10.8 points on this benchmark. | ||||
| GPQA diamond | 93.3 ±1.5 | max | Epoch AI | 2026-07-09 |
| ↳ | 87.4 ±2.4 | low | Epoch AI | 2026-08-07 |
| Settings differ by 5.9 points on this benchmark. | ||||
| LiveBench | 78.6 | max · 23 runs | LiveBench | 2026-06-25 |
| SimpleQA Verified | 43.2 ±1.6 | max | Epoch AI | 2026-08-10 |
| Mystery Game Puzzles | 35.0 ±4.8 | max | Epoch AI | 2026-07-28 |
| ↳ | 19.0 ±3.9 | low | Epoch AI | 2026-08-27 |
| ↳ | 10.0 ±3.0 | medium | Epoch AI | 2026-08-28 |
| Settings differ by 25.0 points on this benchmark. | ||||
The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.
Available from 44 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| openaivendor | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M 922K | 128K | — |
| kenari | free | free | — | — | 1.1M | 128K | — |
| routing-run | $1.50 | $9.00 | — | — | 1M | 128K | — |
| xpersona | $1.50 | $2.00 | $0.15 | — | 372K | 128K | — |
| 302ai | $2.00 | $12.00 | — | — | 1.1M | 128K | — |
| amazon-bedrock · global | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| azure | $2.00 $2.20 | $12.00 $13.20 | $0.20 $0.22 | $2.50 $2.75 | 1.1M 922K | 128K | 2028-01-11 |
| bedrock_converse · global | $2.00 | $12.00 | $0.20 | $2.50 | 1M | 128K | — |
| cloudflare-ai-gateway | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| crossmodel | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| edenai | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| github-copilot | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| impossibl | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| kilo | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| llmgateway | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| llmgateway-providers | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| merge-gateway | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| nano-gpt | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| neon | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| ofox | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| openrouter | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M 922K | 128K | — |
| opper | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| orcarouter | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| perplexity | $2.00 | $12.00 | $0.20 | — | — | — | — |
| requesty | $2.00 | $12.00 | $0.20 | — | 1.1M | 128K | — |
| vercel | $2.00 | $12.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| amazon-bedrock | $2.20 | $13.20 | $0.22 | $2.75 | 1.1M | 128K | — |
| amazon-bedrock · in | $2.20 | $13.20 | $0.22 | $2.75 | 1.1M | 128K | — |
| amazon-bedrock · us | $2.20 | $13.20 | $0.22 | $2.75 | 1.1M | 128K | — |
| bedrock_converse · us | $2.20 | $13.20 | $0.22 | $2.75 | 1M | 128K | — |
| bedrock_mantle · bedrock-mantle | $2.20 $2.64 | $13.20 $15.84 | $0.22 $0.264 | $2.75 $3.30 | 1.1M | 128K | — |
| cortecs | $2.20 | $13.199 | $0.219 | $2.749 | 1.1M | 128K | — |
| llmgateway-providers · aws-mantle | $2.20 | $13.20 | $0.22 | $2.75 | 279K | 128K | — |
| abacus | $2.50 | $15.00 | $0.25 | — | 1M | 128K | — |
| ai-router | $2.50 | $15.00 | $0.25 | $3.125 | 1.1M | 128K | — |
| aihubmix | $2.50 | $15.00 | $0.25 | $3.125 | 1.1M | 128K | — |
| azure-cognitive-services | $2.50 | $15.00 | $0.25 | $3.125 | 1.1M | 128K | — |
| databricks | $2.50 | $15.00 | $0.25 | $3.125 | 1.1M 922K | 128K | — |
| opencode | $2.50 | $15.00 | $0.25 | $3.125 | 1.1M | 128K | — |
| pioneer | $2.50 | $15.00 | $0.25 | $3.125 | 1.1M | 128K | — |
| sap-ai-core | $2.50 | $15.00 | $0.25 | — | 1.1M | 128K | — |
| vivgrid | $2.50 | $15.00 | $0.25 | $3.125 | 1.1M | 128K | — |
| zenmux | $2.50 | $15.00 | $0.25 | $3.125 | 1.1M | 128K | — |
| chatgpt · chatgpt | — | — | — | — | 1.1M | 128K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-02 | bedrock_mantle · bedrock-mantle | Cache read | $0.22 |
| 2026-09-04 | bedrock_mantle · bedrock-mantle | Cache read | $0.22 |
| 2026-09-02 | databricks | Cache read | $0.25 |
| 2026-09-06 | databricks | Cache read | $0.25 |
| 2026-09-02 | neon | Cache read | $0.25 |
| 2026-09-02 | neon | Cache read | $0.20 |
| 2026-09-02 | openrouter | Cache read | $0.20 |
| 2026-09-06 | openrouter | Cache read | $0.20 |
| 2026-09-02 | bedrock_mantle · bedrock-mantle | Cache write | $2.75 |
| 2026-09-04 | bedrock_mantle · bedrock-mantle | Cache write | $2.75 |
| 2026-09-02 | bedrock_mantle · bedrock-mantle | Input | $2.20 |
| 2026-09-04 | bedrock_mantle · bedrock-mantle | Input | $2.20 |
| 2026-09-02 | databricks | Input | $2.50 |
| 2026-09-06 | databricks | Input | $2.50 |
| 2026-09-02 | neon | Input | $2.50 |
| 2026-09-02 | neon | Input | $2.00 |
| 2026-09-02 | openrouter | Input | $2.00 |
| 2026-09-06 | openrouter | Input | $2.00 |
| 2026-09-02 | bedrock_mantle · bedrock-mantle | Output | $13.20 |
| 2026-09-04 | bedrock_mantle · bedrock-mantle | Output | $13.20 |
| 2026-09-02 | databricks | Output | $15.00 |
| 2026-09-06 | databricks | Output | $15.00 |
| 2026-09-02 | neon | Output | $15.00 |
| 2026-09-02 | neon | Output | $12.00 |
| 2026-09-02 | openrouter | Output | $12.00 |
| 2026-09-06 | openrouter | Output | $12.00 |
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