Migrating from gpt-4-0613 to gpt-5.6-sol
What changes when you move from gpt-4-0613 to gpt-5.6-sol: input price −86.7%, output price −66.7%, context window 8,192 → 1,050,000 tokens.
- From
- gpt-4-0613
- Status
- Deprecated
- Shutdown
- Oct 23, 2026
- Time left
- 8 days
- Status
- Active
- Shutdown
- none announced
- Time left
- —
Prices
USD per 1M tokens, standard tier| Type | gpt-4-0613 | gpt-5.6-sol | Change |
|---|---|---|---|
| Input | $30.00first seen October 1, 2026 · source | $4.00first seen October 1, 2026 · source | −86.7% |
| Cached input | Not published | $0.40first seen October 1, 2026 · source | — |
| Output | $60.00first seen October 1, 2026 · source | $20.00first seen October 1, 2026 · source | −66.7% |
At 1M input and 250K output tokens a month: $45.00 on gpt-4-0613, $9.00 on gpt-5.6-sol (−80%).
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | gpt-4-0613 | gpt-5.6-sol | Change |
|---|---|---|---|
| Context window | 8,192 tokensin place when tracking began (October 6, 2026) · source | 1,050,000 tokensin place when tracking began (October 7, 2026) · source | +12717.4% |
| Max output tokens | 8,192 tokensin place when tracking began (October 6, 2026) · source | 128,000 tokensin place when tracking began (October 7, 2026) · source | +1462.5% |
Benchmarks
Same benchmark and source on both sides; settings named where they differ| Benchmark | gpt-4-0613 | gpt-5.6-sol | Change |
|---|---|---|---|
| Arena TextArena, xhigh effort (vs no setting). Ranges don't overlap. | 1276 ±4 | 1485 ±4 | +209 |
| Arena Text: CodingArena, xhigh effort (vs no setting). Ranges don't overlap. | 1315 ±8 | 1534 ±7 | +219 |
GPQA DiamondEpoch AI, max effort (vs no setting).Other settings
| 30.7% | 93.5% | +62.8 pts |
OTIS Mock AIME 2024-2025Epoch AI, max effort (vs no setting).Other settings
| 1.1% | 100.0% | +98.9 pts |
A score from one source is never compared with another source's, and company-reported scores are compared only within the same company; settings named where they differ. Data: Arena (arena.ai), CC BY 4.0; Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.
Features and parameters
Compare models- Fine-tuning: supported on gpt-4-0613, not supported on gpt-5.6-sol.gpt-4-0613: in place when tracking began (October 6, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
Same on both
- Batch API: supported on both.gpt-4-0613: in place when tracking began (October 6, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
Not published for gpt-4-0613: Structured outputs, Function calling, Prompt caching, Image input, PDF input, Reasoning / thinking, Built-in web search, temperature parameter, top_p parameter, logprobs.
Not published for gpt-5.6-sol: PDF input, temperature parameter, top_p parameter, logprobs.
Free tier
gpt-4-0613: no free tier listed
gpt-5.6-sol: Free for shared data, 1M tokens a day for Launch and Grow (250K for Build), in place when tracking began (October 12, 2026) (source) · All free models
gpt-5.6-sol adds a free tier.
Aliases
All aliasesAliases pointing at gpt-4-0613: gpt-4 (in place when tracking began (October 7, 2026) · source)
Aliases pointing at gpt-5.6-sol: gpt-daybreak-blue-latest (in place when tracking began (October 7, 2026) · source)
On cloud platforms
All platform dates| Model | Platform | Platform ID | Shutdown | Time left |
|---|---|---|---|---|
| gpt-5.6-sol | Amazon Bedrock | openai.gpt-5.6-sol | not before Jul 13, 2027Active | |
| gpt-5.6-sol | Microsoft Foundryversion 2026-07-09 | gpt-5.6-sol | Jan 11, 2028Active | 453 days |
Read daily from each platform's own pages. The status above uses each company's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.
Checklist
- Change the model string from
gpt-4-0613togpt-5.6-sol.
Counting to 8:00 pm ET on October 22, 2026, which is 00:00 UTC on October 23, 2026.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: gpt-4-0613, gpt-5.6-sol.