Migrating from o1-2024-12-17 to gpt-5.6-sol

What changes when you move from o1-2024-12-17 to gpt-5.6-sol: input price −73.3%, output price −66.7%, context window 200,000 → 1,050,000 tokens.

From: o1-2024-12-17
Status: Deprecated
Shutdown: Oct 23, 2026
Time left: 8 days

To: gpt-5.6-sol
Status: Active
Shutdown: none announced
Time left: —

Prices

USD per 1M tokens, standard tier

Type	o1-2024-12-17	gpt-5.6-sol	Change
Input	$15.00first seen October 1, 2026 · source	$4.00first seen October 1, 2026 · source	−73.3%
Cached input	$7.50first seen October 1, 2026 · source	$0.40first seen October 1, 2026 · source	−94.7%
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: $30.00 on o1-2024-12-17, $9.00 on gpt-5.6-sol (−70%).

Other tiers, prompt-size bands and modalities are on each model's page.

Limits

Tokens

Limit	o1-2024-12-17	gpt-5.6-sol	Change
Context window	200,000 tokensin place when tracking began (October 7, 2026) · source	1,050,000 tokensin place when tracking began (October 7, 2026) · source	+425%
Max output tokens	100,000 tokensin place when tracking began (October 7, 2026) · source	128,000 tokensin place when tracking began (October 7, 2026) · source	+28%

Benchmarks

Same benchmark and source on both sides; settings named where they differ

Benchmark	o1-2024-12-17	gpt-5.6-sol	Change
Arena TextArena, xhigh effort (vs no setting). Ranges don't overlap.	1402 ±4	1485 ±4	+83
Arena Text: CodingArena, xhigh effort (vs no setting). Ranges don't overlap.	1433 ±10	1534 ±7	+101
Arena VisionArena, xhigh effort (vs no setting). Ranges don't overlap.	1193 ±11	1287 ±7	+94
FrontierMath Tiers 1-3Epoch AI, max effort (vs high effort).	14.7%	89.1%	+74.4 pts
GPQA DiamondEpoch AI, max effort (vs high effort). Other settings 74.2% → 89.9% low effort not run → 82.8% no reasoning	76.8%	93.5%	+16.7 pts
OTIS Mock AIME 2024-2025Epoch AI, max effort (vs high effort). Other settings 53.3% → 95.6% low effort not run → 68.9% no reasoning	73.3%	100.0%	+26.7 pts
SimpleQA VerifiedEpoch AI, max effort (vs high effort).	41.1%	69.7%	+28.6 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

Same on both

Structured outputs: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
Function calling: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
Batch API: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
Image input: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
Reasoning / thinking: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
Fine-tuning: not supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source

Not published for o1-2024-12-17: Prompt caching, PDF input, 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

o1-2024-12-17: Free for shared data, 1M tokens a day for Launch and Grow (250K for Build), in place when tracking began (October 12, 2026) (source)

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

Aliases

All aliases

Aliases pointing at o1-2024-12-17: o1 (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
o1-2024-12-17	Microsoft Foundryversion 2024-12-17	o1	Nov 19, 2026Deprecated	35 days
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 o1-2024-12-17 to gpt-5.6-sol.

Time until shutdown

7days

11hours

24min

13sec

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: o1-2024-12-17, gpt-5.6-sol.